在通气管的安装中，对卫生、安静要求较高的排水系统，应设（）。

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问题单项选择题

A.伸顶通气管

B.专用通气管

C.器具通气管

D.结合通气管

答案

参考答案：C

解析：对卫生、安静要求较高的排水系统，宜设置器具通气管，器具通气管设在存水弯出口端。

阅读理解

根据短文内容，判断正误。（正确的画“√”，错误的画“×”）。

I know my father is very busy everyday. He works five days a week from Monday to Friday. Sometimes

he works on Saturdays or Sundays. He gets up early in the morning. He cooks breakfast for my family. After

breakfast, he goes to work at 7: 10. He has lunch at his work place. He comes back home at about 6: 30. My

mother cooks dinner. After dinner he does the washing. Then he goes out for a walk. Before he goes to bed,

he often reads some newspapers or waches TV. He goes to sleep very late.

( ) 1. My father is free every day.

( ) 2. He gets up early in the morning.

( ) 3. He goes to work at 8: 00.

( ) 4. He has lunch at his work place.

( ) 5. He goes to sleep very early.

填空题

对电容量较大的试品进行交流耐压试验应采用（）、并联或串并联谐振的方法。