If a diesel engine turned over freely but failed to start, t

【名词&注释】

救生圈(buoy)

[单选题]If a diesel engine turned over freely but failed to start, the cause could be ________.

A. water in the fuel
B. cold lube oil
C. excessive starting air pressure
D. excessive fuel pressure

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学习资料：

[单选题]备有可浮救生索的救生圈，船舶每舷至少应有：

A. 1个
B. 2个
C. A与B都对
D. A与B都不对

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