The major cause of trouble in a mechanical-hydraulic governo

题目
单选题
The major cause of trouble in a mechanical-hydraulic governor is contamination of the hydraulic fluid by ()
A

dirt

B

fuel oil

C

governor cooling water

D

fuel oil tars

参考答案和解析
正确答案: A
解析: 暂无解析
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正确答案:A

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