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單項(xiàng)選擇題

The purpose of a preventer as it is used on a conventional yard and stay cargo rig is to().

A.allow greater than normal loads to be handled by the gear
B.act as an inboard guy in the event the inboard guy parts during cargo handling
C.assist the outboard guy in supporting stresses during cargo handling
D.prevent the inboard guy from parting due to stresses during cargo handling

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