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單項選擇題

0ur vessel’s propelled makes 120（）at full speed.

A.r.p.m
B.p.r.m
C.m.p.r
D.p.m.r

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單項選擇題

Passage through the Suez Canal is operated on a（）systerm.

A.convey
B.convoy
C.escort
D.conform

單項選擇題

Pilot ladder is（）on port side.

A.equipped
B.rigged
C.put on
D.put off

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