通向加氯（氨）间的给水管道，应保证不间断供水，并尽量保持管道

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问题单项选择题

通向加氯（氨）间的给水管道，应保证不间断供水，并尽量保持管道内（）的稳定。

A.流速

B.流态

C.水压

D.流量

答案

参考答案：C

选择题

— How much do you know about the 3D film technology?

— A little. Not until _____ the hot movie Avatar ______some about it.[ ]

A. did I see; did I begin to learn

B. I saw; I began to learn

C. I saw; did I begin to learn

D. did I see; I began to learn

单项选择题

接地电阻与接地体的入地深度（）。

A、有关

B、无关

C、不一定

D、无法确定