据中国科学院社会研究所的一项统计资料显示:1978～1999年20年中,我国大陆年均出国2万人,累计达40余万人,学成回国者10万,在校学习者10万,尚有20万留学生滞留国外,回归率仅为33％,出现1:2的倒比现象,这应当引起有关方而的高度重视。 According to a statistical data published by the Institute of Social Sciences of Chinese Academy of Sciences, during the two decades from 1978 to 1999, the average annual number of Chinese mainland people going abroad was 20,000, with a total of more than 400,000 people, 100,000 students returning to China and 100,000 in schooling There are still 200,000 students staying abroad, with a return rate of only 33%. A 1: 2 inverse ratio phenomenon has emerged, which should arouse the attention of all parties concerned.