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This valve regulates the flow of water.

A:fight
B:abolish
C:remove
D:control

参考答案

参考解析
解析:本句意思:这个阀门调节水流。regulate调节,控制(速度、压力、温度等)。fight战斗,斗争;abolish废除,废止;remove开除,去除;control管理,控制。
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