【答案解析】Nowadays, numerous people want to go abroad, most of whom are college graduates. Some of them are for advanced technology, others are in pursuit of fortune and material comfort. Should we impose restriction on them? Some people hold that we should take measures to prevent the outflow of intellectuals, others insist that we must change the present unreasonable employment and personnel system so that the returnees from abroad can put their knowledge and skills in use more effectively at home.