A. They are met and settled down in the hotel. B. They are to visit Beijing by themselves. C. The guide will take the visitors to go around the city. D. They will have a dinner together. 参考答案:A 答案解析:根据Dayl叙述的内容可知游客被导游接到后安顿在旅店。
第16题:[单选题] 工人们很担心会被解雇。 A.The workers know that they will be dismissed. B.The workers are baffled that they may be dismissed. C.The workers are worried that they may be dismissed. 参考答案:C
第27题: [单项选择]熔断器属于配电电器,其用途是()。 A. 用于线路过载、短路或欠电压保护,也可用于不频繁接通和分断电路 B. 主要用于电路隔离,开关能接通分断额定电流,组合电器具有短路和过载保护功能 C. 电力系统中用于线路和设备的短路及过载保护 D. 用于导线和家用电器过载或短路保护,漏电及人身触电保护 参考答案:C 答案解析:熔断器是过载和短路故障的保护设备,当电流超过给定值一定时间,通过融化一个或几个特殊设计和配合的组件,分断电流来切断电路。