單項(xiàng)選擇題

Because of the arrangement of the cell guuides, the most important factor while loading containers is the（）.

A.contents of the container
B.list of the vessel
C.size of the shoreside crane
D.weight of the container

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Before loading bulk grain, bilge wells must be covered to（）.

A.add strength to the bilge well strainer
B.permit rapid flow of water to the bilge wells
C.prevent cargo sifting into the bilge wells
D.preven oil, water , or other liquid from reaching the cargo

單項(xiàng)選擇題

Before welding can be done in a tank that has carried petroleum products, a certificate must be obtained from（）.

A.the customs
B.the register bureau of shipping
C.the shipyard fire department
D.a certified gas chemist