问题
问答题 简答题
什么叫二次设备？
答案
参考答案：
对一次设备进行监视、测量、操纵控制和保护作用的辅助设备。如各种继电器、信号装置、测量仪表、录波记录装置以及遥测、遥信装置和各种控制电缆、小母线等。
搜题请搜索小程序“爱下问搜题”
什么叫二次设备？
参考答案：
对一次设备进行监视、测量、操纵控制和保护作用的辅助设备。如各种继电器、信号装置、测量仪表、录波记录装置以及遥测、遥信装置和各种控制电缆、小母线等。
完形填空（本题有10小题， 每小题1分，共10分） Problems in the neighborhood Good morning，ladies and gentlemen， Today，I am very happy to have a meeting with you．At the meeting we will talk about the __1__ we have these days．We all know the problems of __2__ and the objects failing from windows are getting worse．We have received lots of letters about such problems．So __3__ is time for possible ways to work out these problems． Some dog—owners don’t take care of their dogs well enough，and they let their dogs make mess on the roads and in gardens、This makes the environment __4__．I would like to tell the dog—owners __5__ their behavior is too bad，and at the same time they are making people feel unhappy．We should keep the environment __6__． It is reported that some people __7__ rubbish out of the windows．It is dangerous because falling objects __8__ hurt others．It is against the law．We should put up a notice to teach people not to do so．If it is found，we will record the names and address of those people who throw objects．Then，a warning will be given and __9__ will be punished by law． A safe and comfortable living environment is important to us．__10__ we try our best to carefor our community，it will be a good place to live in．Thank you for your coming．
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