单项选择题

When backing down with sternway，the pivot point of a vessel is（）.

A.about one-quarter of the vessel's length from the stern
B.at the bow
C.about one-third of the vessel's length from the bow
D.aft of the propellers

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What will NOT be found on the Certificate of Inspection of an ocean going tanker?（）

A.Manning requirements
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C.They should be kept in good working order by regular inspection and cleaning
D.All of the above