单项选择题

The （）is used to mend something.

A.glove
B.thread
C.derrick
D.cloth

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单项选择题

The （）part of a vessel on the port side is called port stern.

A.fore
B.aft
C.head
D.bow

单项选择题

All the cargo wires must be （）well.

A.washed
B.greased
C.cleaned
D.scraped

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