题目内容

并联管路各管段的水头损失不相等。

A. 对
B. 错

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紊流射流的动力特征是各横截面上的动量相等。

A. 对
B. 错

Complete the following sentences with the words in brackets. Change the form if necessary.1) If this issue cannot be solved properly, it may affect the long-term _______ of the overall economic development. (sustainable)

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