题目内容（请给出正确答案）

[主观题]

What type of valve is used to direct the flow of hydraulic fluid？A.relief valveB.direction

What type of valve is used to direct the flow of hydraulic fluid？

A.relief valve

B.direction control valve

C.stop valve

D.pressure control valve

提问人：网友dameng 发布时间：2022-01-07

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