C/S结构模式是对大型主机结构的一次挑战,其中S表示的是 【1】 。
参考答案:服务器
解析: 客户机/服务器(Client/Server)结构模式是对大型主机结构模式的一次挑战。
村委会选举是我国社会主义民主在农村最广泛的实践形式之一。2013年5月2日,国家民政部印发《村民委员会选举规程》,明确村民委员会选举程序和场地要求。《规程》的发布,有利于
①人民更好地行使国家权力 ②村民更好地行使民主监督的权利
③村民依法直接行使民主权利 ④基层民主更加规范发展
A.①③
B.③④
C.②④
D.②③
Visitors to this country are normally admitted for six months, but foreign students can usually stay for one year. They must (51) an educational institution, and they are required to study for a minimum of fifteen hours a week on a (52) course. Prospective students have to show that they can afford their studies, and that they have sufficient (53) resources to support themselves (54) in this country.
In order to work here the foreigner needs a work permit, (55) must be applied for by his prospective employer. The problem here is that the Department of Employment has the right to grant or (56) these permits, and there is little that can be done (57) it; it would be extremely unwise for a foreign visitor to work (58) a permit, since anyone doing so is liable to immediate deportation (驱逐出境). There are some people from the Common Market countries, who are often given (59) 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 (60) part-time jobs while they are studying here.
54().
A.after
B.but
C.while
D.before