單項(xiàng)選擇題

Backstaysare（）。

A.running rigging leading aft from the masts
B.running rigging leading forward from the masts
C.standing rigging leading aft from the masts
D.standing rigging from the trees to the mast head

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單項(xiàng)選擇題

Be carefully when you（）the derrick.

A.operate
B.operating
C.operated
D.operates

單項(xiàng)選擇題

Before using a fixed C0₂ system to fight an engine room fire,you must（）.

A.secure the engine room ventilation
B.secure the machinery in the engine room
C.evacuate all engine room personnel
D.ALL of the above

Backstaysare（）。

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Be carefully when you（）the derrick.

Before using a fixed C02 system to fight an engine room fire,you must（）.

Backstaysare（）。

Before using a fixed C0₂ system to fight an engine room fire,you must（）.