Resume
On 20 October 1912 was born in Shenyang, Liaoning province, On 20 October 1912 was born in Shenyang, Liaoning province, . 1934 graduated from Zhejiang University College of Agriculture in 1934 and 1936 1934 graduated from Zhejiang University College of Agriculture in 1934 and 1936 .
Ren hall of Zhejiang province and fertilizers management technician Ren hall of Zhejiang province and fertilizers management technician . from 1936 to 1940 the Central Geological Survey of the soil chamber of the technician, the technician from 1936 to 1940 the Central Geological Survey of the soil chamber of the technician, the technician .
1940 - 1943 Fujian Geological survey by Ren 1940 - 1943 Fujian Geological survey by Ren . 1943 1945 Ren Eng.Seismo soil chamber
1945 1946 at Cornell University and author of the study and investigates 1945 1946 at Cornell University and author of the study and investigates . 1946 1949 according to one of the 3 - D,Adjunct Professor of Chemistry at the University of Central agricultural pedological 1946 1949 according to one of the 3 - D,Adjunct Professor of Chemistry at the University of Central agricultural pedological .
1950 1952 Ren Northeast MAGFOR Soil Survey Mission 1950 1952 Ren Northeast MAGFOR Soil Survey Mission . from 1953 to 1988 served as the director of Chinese Academy of Sciences in the northeast division the Preparatory Office of the Deputy Director, Chinese Academy of Forestry Soil, a researcher with the Institute, Deputy Director of the Soil Research Director from 1953 to 1988 served as the director of Chinese Academy of Sciences in the northeast division the Preparatory Office of the Deputy Director, Chinese Academy of Forestry Soil, a researcher with the Institute, Deputy Director of the Soil Research Director .
1950 and 1988 were elected for the Soil Science Society of China and the new council chairman, and later on for successive leading members of the Council participated in the 1956 1950 and 1988 were elected for the Soil Science Society of China and the new council chairman, and later on for successive leading members of the Council participated in the 1956 . Su in Heilongjiang Valley and the natural resources,Ren expedition on the natural conditions of the group leader of the Chinese Su in Heilongjiang Valley and the natural resources,Ren expedition on the natural conditions of the group leader of the Chinese .
27 August 1988 died in Shenyang, Liaoning province, 27 August 1988 died in Shenyang, Liaoning province, .
Lizhi Pedology
In 1930, the Da Quan Song was enrolled in the College of Agriculture after graduating from Zhejiang University In 1930, the Da Quan Song was enrolled in the College of Agriculture after graduating from Zhejiang University . in the period of studying in China's anti - imperialist struggle of the rising tide of Japanese invasion, social unrest in the General Election, in the period of studying in China's anti - imperialist struggle of the rising tide of Japanese invasion, social unrest in the General Election, .
Song Da Quan deeply patriotic, participated in the International Conference on Financing for Development to Nanjing petitioning the government sent in troops to fight the Japanese Song Da Quan deeply patriotic, participated in the International Conference on Financing for Development to Nanjing petitioning the government sent in troops to fight the Japanese . He Chang and farmers, to learn about their suffering, to see China is an agricultural country, backwardness in science and technology, the production level is low, the peasants living in poverty, thus selected with Liu and didactics pedology, the study of China's agricultural problems in He Chang and farmers, to learn about their suffering, to see China is an agricultural country, backwardness in science and technology, the production level is low, the peasants living in poverty, thus selected with Liu and didactics pedology, the study of China's agricultural problems in .
Liu and under the guidance of, and he and Shen Zi culture,Mo Zu Ming go to Hang county soil surveys, analysis of a large number of soil samples, study assiduously, and discuss with my classmates to share what we have to write "Hang County Soil Research papers Liu and under the guidance of, and he and Shen Zi culture,Mo Zu Ming go to Hang county soil surveys, analysis of a large number of soil samples, study assiduously, and discuss with my classmates to share what we have to write "Hang County Soil Research papers . 1934 Xia graduated from the university, Song Daquan chemical management office to the Zhejiang Provincial Construction Department Ren (IWP) 1934 Xia graduated from the university, Song Daquan chemical management office to the Zhejiang Provincial Construction Department Ren (IWP) .
two months later, together with Yu Hao went to peking. geol. surv soil study laboratory, and with the shuttle quite (J. Thorp), Zhou Chang Yun, Ma dissolved to Datong, Baotou, conducted a survey of Saraqeb, in nearby Beiping made detailed soil survey in this period, he studied in the US and Germany Charting and soil analysis,Learning from the Soviet Union of soil classification and genealogical theory in this period, he studied in the US and Germany Charting and soil analysis,Learning from the Soviet Union of soil classification and genealogical theory .
back to Hangzhou, where he went on to conduct a survey of Hang County, by more than a year of work by the "analysis of soil mechanical theory and practice", again with Ma Shou, Yu Hao "Hang County Investigation Report, Hydro Geological Survey Report", a book about 15 million words back to Hangzhou, where he went on to conduct a survey of Hang County, by more than a year of work by the "analysis of soil mechanical theory and practice", again with Ma Shou, Yu Hao "Hang County Investigation Report, Hydro Geological Survey Report", a book about 15 million words . due to hard - working, hard - working, he in soil science has, on a preliminary basis, and was promoted to Technician, responsible for the laboratory work due to hard - working, hard - working, he in soil science has, on a preliminary basis, and was promoted to Technician, responsible for the laboratory work .
Autumn 1936, introduced by Zhu Kezhen, Song Da Quan to Nanjing Geological Survey soil chamber work Autumn 1936, introduced by Zhu Kezhen, Song Da Quan to Nanjing Geological Survey soil chamber work . twice sent to investigate the present soil, paddy soil, cotton and tea garden soil,had to cross the sea to the Zhoushan Archipelago, and the like, the first time, China's Coastal Zone and Coastal Soil Survey twice sent to investigate the present soil, paddy soil, cotton and tea garden soil,had to cross the sea to the Zhoushan Archipelago, and the like, the first time, China's Coastal Zone and Coastal Soil Survey .
worked together with Hou Guangjiong, Zhu Lianqing, IGBP, Liu Peng, etc worked together with Hou Guangjiong, Zhu Lianqing, IGBP, Liu Peng, etc . the summer of 1937, Japanese forces attacked Shanghai, the Nanjing National Government's authority will be gradually moved from the summer of 1937, Japanese forces attacked Shanghai, the Nanjing National Government's authority will be gradually moved from .
Song Da Quan in defiance of enemy bombing, and several colleagues the instruments and specimen packing Xiyun Song Da Quan in defiance of enemy bombing, and several colleagues the instruments and specimen packing Xiyun . the same year, with Zhu Lianqing, Xiong Yi, Zhang Chu Po, and the like, in Hunan Province, the county of northwest China's work, and a tour of Mangshan Forest Soil Survey the same year, with Zhu Lianqing, Xiong Yi, Zhang Chu Po, and the like, in Hunan Province, the county of northwest China's work, and a tour of Mangshan Forest Soil Survey .
1938 Song Da Quan to Resourc. kunming office To Rear Area Soil Resources Development, Jianshui of Yunnan summer survey Dam Project on the wasteland,Winter attended West Yunnan along with a large delegation, Baoshan, Tengchong, Mangshi, Meng Qiu, an area of wasteland in Yingjiang County of main soil and rocks in the Diancang Mts, Gaoligong Mountains, the mountain soil vertical distribution, and discovery of phosphate rock mountain chicken chenggong To Rear Area Soil Resources Development, Jianshui of Yunnan summer survey Dam Project on the wasteland,Winter attended West Yunnan along with a large delegation, Baoshan, Tengchong, Mangshi, Meng Qiu, an area of wasteland in Yingjiang County of main soil and rocks in the Diancang Mts, Gaoligong Mountains, the mountain soil vertical distribution, and discovery of phosphate rock mountain chicken chenggong .
in ethnic minority areas, and didn't speak the language, customs and habits are different from the field with great difficulty, Song Da Quan and colleagues in the face of difficulties, most often in the inaccessible mountains and canyons in ethnic minority areas, and didn't speak the language, customs and habits are different from the field with great difficulty, Song Da Quan and colleagues in the face of difficulties, most often in the inaccessible mountains and canyons . 1940, for the development of economic construction in Fujian Province, Song Da Quan and other Fujian Province for the establishment of 3 is assigned to the geological survey, Director in Chang Zhou Yun, Song Da Ren Quan,soil Sindian 1940, for the development of economic construction in Fujian Province, Song Da Quan and other Fujian Province for the establishment of 3 is assigned to the geological survey, Director in Chang Zhou Yun, Song Da Ren Quan,soil Sindian .
in Fujian Yongan for three years, often going to the mountains, hiking trips in Fujian Yongan for three years, often going to the mountains, hiking trips . 7500 km on the mountainous townships was the prevalence of malaria, 7500 km on the mountainous townships was the prevalence of malaria, .
Song Da Quan hardships, adhere to the field investigation, sometimes can't find shelter, but also by day or night Song Da Quan hardships, adhere to the field investigation, sometimes can't find shelter, but also by day or night . can't eat into meal, then to carry with hunger;Malaria, and he swallowed a parcel of twine or quinine powder can't eat into meal, then to carry with hunger;Malaria, and he swallowed a parcel of twine or quinine powder .
so, 3 years as the main route taken by the investigation method, soil surveys, completed the 1: 500,000 in Shandong Province;and the land use and soil generated during development and fertility, well stimulation, a comprehensive study;Zhangpu of Fujian found bauxite so, 3 years as the main route taken by the investigation method, soil surveys, completed the 1: 500,000 in Shandong Province;and the land use and soil generated during development and fertility, well stimulation, a comprehensive study;Zhangpu of Fujian found bauxite . in 1945, as a matter of Spring Practice in America During the examination by the Ministry of Agriculture and Forestry (MAGFOR), state - funded in 1945, as a matter of Spring Practice in America During the examination by the Ministry of Agriculture and Forestry (MAGFOR), state - funded .
in the United States to study the application of aerial photos of the Tennessee soil surveying method, in the autumn to Cornell University's School, soil chemistry, soil physics and forest pedology in the United States to study the application of aerial photos of the Tennessee soil surveying method, in the autumn to Cornell University's School, soil chemistry, soil physics and forest pedology . spring of the next year, to participate in the meeting of the American College of pedology in Ohio, then to the United States Bureau of Fisheries section soil colloids and water research learning method, learning of the People's Republic of China on Water and Soil Conservation in wisconsin school 6 weeks, and then to the University of Missouri, under the tutelage of Professor Marshall learning soil mineralogy,U.S. and a pedologist shuttle Po et al., inspected Midwestern states soil
learning time not very long, but involve very wide areas, the Song Da Quan and informed, but it also feels that the U.S. of soil science, soil in many ways without departing from the chemical viewpoint, also there is the idealist of July 1946 Song Da Quan returned to China, in Nanjing, the soil chamber, and is now the Chairman of the Central University of pedology July 1946 Song Da Quan returned to China, in Nanjing, the soil chamber, and is now the Chairman of the Central University of pedology .
professor was teaching, his eclectic, with the emphasis on China and the Soviet Union of Soil Sciences professor was teaching, his eclectic, with the emphasis on China and the Soviet Union of Soil Sciences . 1948, Song Da Quan see the Kuomintang reactionary rule of the corrupt, reluctant to retreat with their fathers, Resourc,participate in the patrols to protect books and equipment, to meet the liberation of Nanjing 1948, Song Da Quan see the Kuomintang reactionary rule of the corrupt, reluctant to retreat with their fathers, Resourc,participate in the patrols to protect books and equipment, to meet the liberation of Nanjing .
To Northeast
fatherland with economic construction of soil scientists, and the need for Song Da Quan felt such a strong resonance fatherland with economic construction of soil scientists, and the need for Song Da Quan felt such a strong resonance . in 1950, he gladly accepted the invitation of the Ministry of Agriculture and Forestry (MAGFOR) people in northeast, north, to start a new career in 1950, he gladly accepted the invitation of the Ministry of Agriculture and Forestry (MAGFOR) people in northeast, north, to start a new career .
arrive in Shenyang at the beginning of June and began preparing the Soils in Northeastern Part of the mission, and arrive in Shenyang at the beginning of June and began preparing the Soils in Northeastern Part of the mission, and . He served as head of organization department of the College of Agriculture and Agriculture proving ground, soil experts, to carry out packet Northeast wasteland investigation, which lasted 3 years, and the north - east of the property of the soil, this paper puts forward the planning He served as head of organization department of the College of Agriculture and Agriculture proving ground, soil experts, to carry out packet Northeast wasteland investigation, which lasted 3 years, and the north - east of the property of the soil, this paper puts forward the planning .
Every winter, Song Da Quan and Hainan, Leizhou Peninsula,Rubber - Suitable for Small and Medium - Sized Enterprises engaged in the planning of the Every winter, Song Da Quan and Hainan, Leizhou Peninsula,Rubber - Suitable for Small and Medium - Sized Enterprises engaged in the planning of the . In order to solve the agricultural production in some of the practical problems, he led the technical personnel are Jixian, Heilongjiang State Farm, the application about the soil genesis, soil forming process, it is determined that the experiment system of soil classification, soil types and the corresponding sub - class of the physical and chemical properties of the system;He and Zeng Zhaoshun, Chen Enfeng, Cheng Bo Rong Jiusan Farm in Nenjiang County, Heilongjiang Province, Jilin Province Guo eergetu and Liaoning Province set up the positioning study method was used, respectively in black soil, saline soil, clayey sand and improve the test system, for the guidance of agricultural production, has produced great bencficial results In order to solve the agricultural production in some of the practical problems, he led the technical personnel are Jixian, Heilongjiang State Farm, the application about the soil genesis, soil forming process, it is determined that the experiment system of soil classification, soil types and the corresponding sub - class of the physical and chemical properties of the system;He and Zeng Zhaoshun, Chen Enfeng, Cheng Bo Rong Jiusan Farm in Nenjiang County, Heilongjiang Province, Jilin Province Guo eergetu and Liaoning Province set up the positioning study method was used, respectively in black soil, saline soil, clayey sand and improve the test system, for the guidance of agricultural production, has produced great bencficial results .
Song Da Quan infatuation on the north - east is rich in land resources, decided all of northeast earth Song Da Quan infatuation on the north - east is rich in land resources, decided all of northeast earth . 1954 he participated in the preparation for the establishment of the Chinese Academy of Sciences in the northeast (after the formation of the Chinese Academy of Sciences is a forestry soil Institute), the Preparatory Office of the Deputy Director, Research Fellow,Deputy Director of the soil and the directors of the 1954 he participated in the preparation for the establishment of the Chinese Academy of Sciences in the northeast (after the formation of the Chinese Academy of Sciences is a forestry soil Institute), the Preparatory Office of the Deputy Director, Research Fellow,Deputy Director of the soil and the directors of the .
He who was elected to the 3rd Council of China, and to the successive sessions of the Council, a leading member of the He who was elected to the 3rd Council of China, and to the successive sessions of the Council, a leading member of the . 1956 he participated in Su Heilongjiang Valley Natural resources survey, Ren expedition on the natural conditions, Chinese leader of the group, and a years - long trek across the Straits in Heilongjiang, the writer made field investigation, has yielded fruitful results and completed a Law of the People's Republic of China in Heilongjiang Valley and the natural resource of the wuyanling Proceedings" for that purpose. In 1962, he and other experts by Premier Zhou Enlai met
according to Since 1950s in Northeast China and Inner Mongolia in the northeast of the large group of the system of investigation and study,Song Da Quan, organize the relevant experts to write out), the paper expounds the problems in Northeast China's first book, "Soils in Northeastern Part of China" and "Atlas of northeast China's natural resources", the book is 81 million Chinese characters, accompanied by a 1: 300 000 soil map (1977 where Liaoning Province Scientific Assembly of the Significant Achievement Award, 1980, Science Press) according to Since 1950s in Northeast China and Inner Mongolia in the northeast of the large group of the system of investigation and study,Song Da Quan, organize the relevant experts to write out), the paper expounds the problems in Northeast China's first book, "Soils in Northeastern Part of China" and "Atlas of northeast China's natural resources", the book is 81 million Chinese characters, accompanied by a 1: 300 000 soil map (1977 where Liaoning Province Scientific Assembly of the Significant Achievement Award, 1980, Science Press) . he created the discipline of Forest Soil in China and the research direction, sponsored the preparation of the Chinese forest -" he created the discipline of Forest Soil in China and the research direction, sponsored the preparation of the Chinese forest -" .
draft in a bid to make the soil resources to better serve the economic construction of China, Song Da Quan positive initiatives and facilitating the first national soil surveyThe 2nd national soil survey and worked as a deputy in the National Technical Advisory Group and the north - east, led the team of advisers, often down to the grass - roots work draft in a bid to make the soil resources to better serve the economic construction of China, Song Da Quan positive initiatives and facilitating the first national soil surveyThe 2nd national soil survey and worked as a deputy in the National Technical Advisory Group and the north - east, led the team of advisers, often down to the grass - roots work . prospecting in 1963, he played in the national working conference on forestry and agriculture and forestry science term installation prospecting in 1963, he played in the national working conference on forestry and agriculture and forestry science term installation .
He led scientists to develop the western part of Liaoning and semi - arid areas for investigation and study, conduct comprehensive test technology, the establishment of a production field, the guidance of natural conditions and agricultural production He led scientists to develop the western part of Liaoning and semi - arid areas for investigation and study, conduct comprehensive test technology, the establishment of a production field, the guidance of natural conditions and agricultural production . in the Cultural Revolution, Song Da Quan severely persecuted and imprisoned for two years, and repeatedly beaten, maimed finger in the Cultural Revolution, Song Da Quan severely persecuted and imprisoned for two years, and repeatedly beaten, maimed finger .
but once you do research work on the claim, he put personal grudges behind him. immediately plunge into soil science in the Third Plenary Session of the Party has brought the country 'sscience Spring immediately plunge into soil science in the Third Plenary Session of the Party has brought the country 'sscience Spring .
Song Da Quan the coruscate vigor Song Da Quan the coruscate vigor . in the spring of 1980 he led the Institute of Forestry Soil part of scientists and technicians, participated in the sciences of the Tengchong area, Yunnan, which lasts for 40 days, the field over 5000 kilometers travel in the spring of 1980 he led the Institute of Forestry Soil part of scientists and technicians, participated in the sciences of the Tengchong area, Yunnan, which lasts for 40 days, the field over 5000 kilometers travel .
together and he insisted that the Asia and Pacific Summer Institutes or earth, cartography, working tirelessly to together and he insisted that the Asia and Pacific Summer Institutes or earth, cartography, working tirelessly to . once. During our homeward journey, the car at an altitude of 2,000 metres of the road is a failure on the
Song Da Quan brought them up, speaking here of natural condition and environment evolution,He is also the same 40 - year - old Hou Guangjiong Myanmar from horseback riding to the examined here, who are minority chieftain, seized on the story, encouraging them to overcome the difficulties, the successful completion of the survey and cartography Song Da Quan brought them up, speaking here of natural condition and environment evolution,He is also the same 40 - year - old Hou Guangjiong Myanmar from horseback riding to the examined here, who are minority chieftain, seized on the story, encouraging them to overcome the difficulties, the successful completion of the survey and cartography . this task in Tengchong, the 1985 First Prize from the Chinese Academy of Sciences, this task in Tengchong, the 1985 First Prize from the Chinese Academy of Sciences, .
This year, Song Da Quan joined the Communist Party of China (CPC) Liaoning This year, Song Da Quan joined the Communist Party of China (CPC) Liaoning . To adapt the reform and opening up, economic development needs of Song Da Quan is the editor - in - chief of the Liaoning, Land and Resources", the compilation of the "Liaoning Atlas To adapt the reform and opening up, economic development needs of Song Da Quan is the editor - in - chief of the Liaoning, Land and Resources", the compilation of the "Liaoning Atlas .
has been discussed in detail in the province of natural geography, all kinds of natural resources, environmental quality and evaluation, national economy structure and layout,intellectual and labour force status and the development of the situation, the province's economic development has provided important scientific basis for has been discussed in detail in the province of natural geography, all kinds of natural resources, environmental quality and evaluation, national economy structure and layout,intellectual and labour force status and the development of the situation, the province's economic development has provided important scientific basis for . 165 - million - word book, published by Liaoning Peoples Publishing House (1988) 165 - million - word book, published by Liaoning Peoples Publishing House (1988) .
Prize of Scientific Progress of Liaoning Province Prize of Scientific Progress of Liaoning Province.
Teaching And Educating
"Science is endless, the person that needs to persist in its efforts, is clearly up to Song - chuen, often on the internet every student "Science is endless, the person that needs to persist in its efforts, is clearly up to Song - chuen, often on the internet every student . said his research in soil science, always attaches great importance to cultivating young scientists and technicians of said his research in soil science, always attaches great importance to cultivating young scientists and technicians of .
1946 - 1948, due to lack of funding, as a matter of Spring in Nanjing suburb with detailed soil survey and mapping work 1946 - 1948, due to lack of funding, as a matter of Spring in Nanjing suburb with detailed soil survey and mapping work . he used the situation to their words and deeds, culture soil and over 10 masters of youth workers, has got them in the founding of the People's Republic of China, to quickly grow into the soil to form the backbone of scientific research to the Northeast after he used the situation to their words and deeds, culture soil and over 10 masters of youth workers, has got them in the founding of the People's Republic of China, to quickly grow into the soil to form the backbone of scientific research to the Northeast after .
, see Song Da Quan, a large - scale resource exploitation and planning tasks,where there is a need to perform background investigations on soil resource, soil scientists and woefully inadequate, he set out with his learned and master the theory and method of soil investigation field works, combining foreign experiences for reference, summing up, I imparted of missions by members of the soil, and organize relevant experts to compile "Soil Survey Manual" (1955, Science Press) , see Song Da Quan, a large - scale resource exploitation and planning tasks,where there is a need to perform background investigations on soil resource, soil scientists and woefully inadequate, he set out with his learned and master the theory and method of soil investigation field works, combining foreign experiences for reference, summing up, I imparted of missions by members of the soil, and organize relevant experts to compile "Soil Survey Manual" (1955, Science Press) . book production from the practical need, approachable, accessibly, "beginner's survey of the people, If you can master the basic method, it is also possible to have the conditions for completion of the investigation and mapping tasks" (Ma dissolved, soil survey manual, the preamble),aged soil become effective workers of reference books that year via book production from the practical need, approachable, accessibly, "beginner's survey of the people, If you can master the basic method, it is also possible to have the conditions for completion of the investigation and mapping tasks" (Ma dissolved, soil survey manual, the preamble),aged soil become effective workers of reference books that year via .
Song Da Quan guidance of hundreds of scientists, later to become the most counties in Northeast China scientific experts in the fields of the backbone and Song Da Quan guidance of hundreds of scientists, later to become the most counties in Northeast China scientific experts in the fields of the backbone and . "Soil Sciences is a facing agricultural production subject to hell is paved with knowledge found in books, not on the agricultural production process by which she would not know "Soil Sciences is a facing agricultural production subject to hell is paved with knowledge found in books, not on the agricultural production process by which she would not know .
", "pay attention to combine theories and practice, cultivation of ability, practice ability by ", "pay attention to combine theories and practice, cultivation of ability, practice ability by ." That is Song Da Quan which he recruited 10 graduate students, including two doctoral requirements, while his own actions,The students are setting an example as " That is Song Da Quan which he recruited 10 graduate students, including two doctoral requirements, while his own actions,The students are setting an example as .
his age of 75, also personally led the 2 doctors in rural areas, and a tour of Mt. Lushan for rock and soil genesis of the Research on the Relationship between his students in, there's a tongue - in - China his students in, there's a tongue - in - China .
leader in the field of resource and environment scientists who have made outstanding contributions Sun Honglie, Song Da Quan is one of the first graduate, served as vice - president of the Chinese Academy of Sciences after the leadership, still did not forget his mentor's guidance and recite the Shenyang inspection work or attend meetings, to visit his teacher leader in the field of resource and environment scientists who have made outstanding contributions Sun Honglie, Song Da Quan is one of the first graduate, served as vice - president of the Chinese Academy of Sciences after the leadership, still did not forget his mentor's guidance and recite the Shenyang inspection work or attend meetings, to visit his teacher . with another graduate student Wu Yan Yu is also the environmental protection of a distinguished scholar of with another graduate student Wu Yan Yu is also the environmental protection of a distinguished scholar of .
he mentored numerous students and assistants,Some have held leadership positions in science and technology, many people became the backbone of the related fields of study and academic leader he mentored numerous students and assistants,Some have held leadership positions in science and technology, many people became the backbone of the related fields of study and academic leader . Song Da Quan to truth - seeking, pragmatic style, his students, impressed;His words and deeds, should set an example of the attitude, and firmly engraved in the minds of students Song Da Quan to truth - seeking, pragmatic style, his students, impressed;His words and deeds, should set an example of the attitude, and firmly engraved in the minds of students .
Resources
1, http: / / www. osc. xielpzjuem.zju.edu.cn edu. cn / index.php? id = 77 & catalog _ object _ id = 424302, http: / / www. cas. cn / html / Dir / 2006 / 01 / 13 / 13 / 70, 44 /. htm
