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單項(xiàng)選擇題

The patches where rust have been removed should be wiped clean before paint is（）.

A.applied
B.supplied
C.replied
D.complied

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單項(xiàng)選擇題

The permant dunnage attached to the frames of the ship that aids in ventilation is (are) the（）.

A.hatch boards
B.tank top
C.hatch beams
D.sweat bettens

單項(xiàng)選擇題

The productivity of working shifts can be improved through a decrease of（）.

A.working hours
B.gangs
C.idle time
D.weight per set

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