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问题 多项选择题

在建筑物低压电气装置中，下列哪些场所的设备可以省去间接接触防护措施( )

A．道路照明的金属灯杆

B．处在伸臂范围以外墙上架空线绝缘子及其连接金属件(金属盒)

C．尺寸小的外露导电体(约50mm×50mm)，而且与保护导体连接困难的

D．触及不到钢筋的混凝土电杆

答案

参考答案：B,C,D

解析：[根据] GB 16895.21-2004《建筑物电气装置 第4-41部分：安全防护一电击防护》410.3.3.5。

完形填空

A: Hello!

B: Hello, Tom. 小题1:___________________________?

A: I’m OK. And you?

B: I’m great. I just returned from a school trip.

A: That sounds fun. 小题2:___________________________

B: I went to the aquarium.

A: Wow. 小题3:________________________

B: No, there weren’t any whales, but there were some sharks.

A: Cool! What else did you see?

B: I saw some crocodiles. 小题4:___________________________. I don’t like them. I also saw some funny penguins.

A 小题5:_______________________

B: After that, we got on the bus and went to the park. We had our lunch there. Then we got back to school.

A: That is a great school trip.

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单项选择题 配伍题

诊断消化性溃疡首选（）

A.钡剂造影

B.胃镜检查

C.胃液分析

D.腹部B超

E.腹部CT
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