题目内容

基圆以内有渐开线。

A. 正确
B. 错误

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离基圆越远，渐开线上的压力角越大。

A. 正确
B. 错误

If the vessel does not arrive by the canceling date，and the Charterer（）expenses，these expenses can be claimed by him from the Shipowner where they are in the reasonable contemplation of the parties.

A. occurs
B. incurs
C. discus
D. recur

什么叫湿度？

简述中药杂质检查的基本内容。