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【单选题】
信息系统的各种箱体、壳体、机架等金属组件与建筑物的共用接地系统的等电位连接应采用以下两种基本形式的等电位连接网络：S型星形和M型网型结构。当采用S型等电位连接网络时，信息系统的所有金属组件，除（）连接点外，应与共用接地系统的各组件有大于10KV、1.2/50μs的绝缘。A.
共用
B.
等电位
C.
互相连接
D.
焊接
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反馈参考答案：
举一反三
【单选题】Woman: Henry, your article in the campus news was excellent. Man: I only wish they had published the entire thing. Question: What do we learn from Henry's response?
A.
The article was actually longer.
B.
His publishing career has just begun.
C.
The newspaper has printed his other articles.
D.
The article is about sports.
【简答题】Hi Zoe,I have great news to tell you. Remember last time we talked and I said, "I wish I (1) ______ a reporter"? Well, from now on, I don't need to dream about this because I am a reporter now! Even t...
【简答题】如何理解马克思主义是科学性与革命性的统一?
【单选题】_______ about the loss of Malaysia Flight MH370 keep everyone worried. I wish we could find the_______ of the accident as soon as possible.
A.
News; excuse
B.
Information; result
C.
Messages; cause
D.
Advice; influence
【简答题】I’m a 12-year-old boy. I like traveling very much. How I wish to visit the moon some day! Wu Dong, Guangdong I’m 15. Now I’m studying English in London. I want to invent(发明) a language (语言) mach...
【单选题】The girt was a little of _________.
A.
the coquette
B.
a coquette
C.
coquette
D.
coquettes
【单选题】— What______useful dictionary for beginners of English! Where did you get it? — I bought it in the bookshop.
A.
a
B.
an
C.
the
D.
/
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