單項(xiàng)選擇題

We usually choose cargo-handling equipment according to（）.

A.the ship type
B.the port's organization
C.the cargo's nature
D.the dockers’ ability

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單項(xiàng)選擇題

We have two kinds of cargo on board，but（）is dangerous.

A.either
B.neither
C.none
D.no

單項(xiàng)選擇題

Vessels transiting the canal must have their accommodation ladders and cargo booms（）.

A.removed
B.rigged in
C.readjusted
D.tested