单项选择题

The ship’s centerline is the （）(龙骨).

A.frame
B.bulwark
C.keel
D.bulkhead

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单项选择题

A. Aft peak tanks
B. Pilot ladder
C. Fore peak tank
D. Peak tanks aft

单项选择题

A. Aft peak tanks
B. Pilot ladder
C. Fore peak tanks
D. Peak tanks fore

单项选择题

A. funnel and mast
B. weather deck
C. gangway chain
D. derrick and mast