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單項選擇題

When launching a lifeboat in the rough sea, the davit gears should be released（）.

A.before the boat is lowered from the stowed position
B.as the boat fall blocks break clear of the davit head
C.before the boat is lowered from the embarkation level
D.after the boat is released into the water

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單項選擇題

When my ship arrived there, their ship（）.

A.has left already
B.left already
C.had left already
D.would left already

單項選擇題

When visibility is 10 nautical miles, we say that visibility is（）.

A.very good
B.good
C.poor
D.moderate