单项选择题

Leeway is the（）.

A.difference between the true course and the compass course
B.momentum of a vessel after her engines have been stopped
C.lateral movement of a vessel downwind of her intended course
D.displacement of a vessel multiplied by her speed

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判断题

在灭火方法中，冷却法是指将火场温度降低到可燃物质的燃点以下。

单项选择题

接听呼入电话的处理流程（）。

A.接听-了解用户需求-提出解决方案-问题处理与记录-确认处理效果-电话收尾
B.接听-提出解决方案-问题处理与记录-确认处理效果-了解用户需求-电话收尾
C.接听-了解用户需求-确认处理效果-问题处理与记录-提出解决方案-电话收尾
D.接听-了解用户需求-问题处理与记录-提出解决方案-确认处理效果-电话收尾

单项选择题

When a diesel engine is operate at partial load, as compared to full load ,a decrease will occur in the average （）

A.air quantity aspirated
B.fuel injection pressure
C.combustion pressure on the power stroke
D.compression on the compression stroke