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單項選擇題

Horizontal subdivision decks forming watertight compartments in the columns of a semisubmersible ship increase the unit’s（）.

A.tank capacities
B.stability in the event of damage
C.towing speed
D.anchor holding ratio

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單項選擇題

High pressure and low pressure alarms must be tested（）.

A.no earlier than 24 hours prior to loading
B.no later than 24 hours prior to loading
C.anytime prior to loading
D.weekly

單項選擇題

High clouds，composed of small white flakes or scaly globular masses，and often banded together to form a “mackerel sky”，would be classified as（）.

A.cirrus
B.cirrocumulus
C.altostratus
D.cumulonimbus