Which of the following conditions could contribute to the cr

【名词&注释】

遇难者(victim)、救生艇筏、每一个(every single)

[单选题]Which of the following conditions could contribute to the cracking of a diesel engine cylinder head?

A. Leaking seal ring
B. Insufficient heat transfer from the exhaust valves
C. Blocked cooling water passages to the head
D. Excessive scavenging air provided to the engine

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举一反三：

[单选题]每一个遇难者在登上救生艇筏后均应立即：

A. 休息
B. 饮水
C. 服晕船药
D. 放镇浪油

[单选题]A magnetic strainer is used in the diesel engine reduction gear oil system to remove small particles of

A. water
B. babbitt
C. iron or steel
D. acids

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