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问题 问答题 简答题

简叙N的接收过程

答案

参考答案：

接收N时，先关闭所有N用户的隔离阀及各公用工程站的N手动阀，然后

打开界区处的N总阀，从各系统N总管末端的倒淋排放，并取样分析N纯度达99.5%（体

积百分比），露点<-70℃为合格，否则继续排放直到合格.

改错题

We're now living in an information 4ge, m that TV, cell           小题1:________

phones and the Web are wide used．It seems that many people    小题2:________

cannot enjoy them without them．However, if I had to give      小题3:_______

up one of them, I will turn off the TV ratter than switch off        小题4:________

my ceil phone and cut off the Internet．I could do without TV     小题5:_______

because few show take my fancy and there're too many commercials．小题6:_______

Besides, most programs on the TV are also available elsewhere．  小题7:_______

As for cell phones and the Web, they are more necessary to me．   小题8:_______

I need a cell phone to keep touch with m> friends and family, and   小题9:________

almost all information can be gather on the Internet．            小题10:_______
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多项选择题

高层建筑内的地下商业营业厅、展览厅等，当符合（）条件时，其防火分区的最大允许建筑面积可增加到2000m2。

A、设有漏电火灾报警系统

B、设有自动灭火系统

C、采用不燃或难燃材料装修

D、设有火灾自动报警系统

E、设有避难走道
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