问题 填空题

计算机网络拓扑主要是指 【3】 子网的拓扑构型,它对网络性能、系统可靠性与通信费用都有重大影响。

答案

参考答案:通信

解析: 通信子网由通信控制处理机、通信线路与其他通信设备组成,完成网络数据传输、转发等通信处理任务。

完形填空
Five years ago, David Smith wore an expensive suit to work. He used to carry a nice         to work with him so that he could change if his clothes got wrinkled (皱的). “I’m working harder than ever,” David says, “       I need to feel comfortable.” More and more companies are          their office workers to wear casual clothes (便装) to work. They thought the casual clothes could         their work. In the early 1990s, the workers in American companies could wear casual clothes on Friday (but only on Friday).This became known         “dress-down Friday” or “casual Friday”. Why have so many companies done like that? One reason is that it’s         for a company to hire (雇佣) new workers if it has a casual dress style. “A lot of young people don’t want to         for work,” says the owner of a software company, “so it’s hard to hire people if you make a         for their dressing.” Another reason is that people work         when they are wearing comfortable clothes. Supporters of casual office wear also say that a casual dress style helps them         money. “Suits are expensive, if you have to wear one every day,” one person said, “for the same amount of money, you can buy a lot more casual clothes.”
小题1:
A.suitB.bagC.breakfastD.newspaper
小题2:
A.orB.soC.whileD.unless
小题3:
A.helping B.invitingC.encouragingD.warning
小题4:
A.be good for B.be interested inC.be friendly toD.be pleased with
小题5:
A.ofB.asC.forD.about
小题6:
A.harderB.saferC.easierD.worse
小题7:
A.put upB.get upC.look upD.dress up
小题8:
A.planB.ruleC.fireD.mark
小题9:
A.politelyB.seriouslyC.correctlyD.happily
小题10:
A.saveB.raiseC.makeD.waste
选择题