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單項(xiàng)選擇題

A.dense bulk cargoes
B.household appliances
C.fragile cargoes
D.heavy industrial machinery

你可能感興趣的試題

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

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