In order to get a large amount of water power we need a large pressure and a large current.
In order to get a large amount of water power we need a large pressure and a large current.
A、为了得到大量水力,我们需要高水压和强水流。
B、为了得到大量水能,我们需要高水压和强水流。
C、为了获得大量的水力,我们需要很大的压力和水流。
D、为了得到大量水能,我们需要很大的压力和水流。
【正确答案】:B
【题目解析】:p72
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