| Hotlines have become common in China.
Some radio broadcasting stations use hotlines to encourage the listeners to take
part in the talk shows. That’s a good idea. Yet, the fact is, some people do nothing but break the whole programme. Some people know little about the topic under discussion. Sometimes they do not even know what the host (主持人) is talking about. So the host has to tell the caller what the show is about. Usually the caller will ask a few questions which express his hope and show his ignorance (无知). Then the host has to answer and explain how silly this is! It wastes a lot of time. It seems that some people phone the hotlines in fun. They just want to let the listeners hear them. They don’t care what the topic is, whether they themselves are interested in or how silly they appear to be. I’m totally b A. radio stations use hotlines in a wrong way B. it is a fact C. it is a good idea D. some people have unclear thoughts [单选题]各类油罐车在电气化区段发生泄漏时,(?? )人员上去处理。
A.无关 B.严禁 C.允许 D.视情况 [填空题]风机启动前需检查轴承油箱的油位是否正常，油位应在（ ）之间。
[多选题]民事活动的基本原则包括( ).
A.自愿原则 B.等价有偿原则 C.效率原则 D.诚实信用原则 [多项选择]住房公积金可用于( )。
A. 购买房屋 B. 翻建、大修自住住房 C. 租赁房屋 D. 偿还购房贷款本息 E. 投资房地产 [判断题] 货车人力制动机分为链子闸、螺丝闸、盒子闸、折叠式、NSW型等。
A.正确 B.错误 [单项选择]短期飞行冲突推测模式中向前看时间参数范围为（）倍系统航迹处理周期至（）S。
A. 1；180 B. 2；180 C. 1；90 D. 2；90 [单选题]一台380伏7.5千瓦的电动机，装设过载和断相保护，应选( )。
A.J6-20/3 B.J6-60/3D C.J6-20/3D 我来回答: 提交
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