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單項選擇題

The majority of cargo gear breakdowns are a result of（）.

A.guy failures
B.topping lift failures
C.bending of the boom from compression
D.gooseneck failure

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單項選擇題

The man directing and supervising the work of stevedores is the（）.

A.local agent
B.watchman
C.docker
D.foreman

單項選擇題

The pilot launches display the pilot flag（）.

A.at night
B.by day
C.when in fog
D.in bad weather

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