單項(xiàng)選擇題

A.negative GM
B.propressive flooding
C.structural failure
D.an immediate need to ballast

你可能感興趣的試題

A.structural bulkhead
B.exterior bulkhead
C.certerline bulkhead
D.joiner bulkhead

A.cutting a square notch at each end of the crack
B.drilling a hole at each end of crack
C.slot-welding the crack
D.welding a doubler over the crack

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