Visitors to this country are normally admitted for six months, but foreign students can usually stay for one year. They must (54) an educational institution, and they are required to study for a (55) of fifteen hours a week on a daytime course. Prospective students have to show that they can afford their studies, and that they have sufficient (56) resources to support themselves (57) in this country.

In order to work here the foreigner needs a work permit, (58) must be applied for by his prospective employer. The problem here is that the Department of Employment has the right to grant or (59) these permits, and there is little that can be done (60) it; it would be extremely unwise for a foreign visitor to work (61) a permit, since anyone doing so is liable to immediate deportation (驱逐出境). There are some people from the European countries, who are often given (62) residence permits of up to five years. Some other people, such as doctors, foreign journalists, authors and others can work without permits, and foreign students are normally allowed to (63) part-time jobs while they are studying here.

57().

A.after 

B.since 

C.while 

D.before

中共八大和中共十一届三中全会是建国后中 * * 党历史上两次重要的会议。以下选项与这两次会议均无关的是　　

A．都提出要实行改革开放

B．都明确了经济建设这个中心任务

C．都体现了实事求是的精神

D．都是对我国社会主义建设道路的成功探索