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單項(xiàng)選擇題

Cargoes that might leak from containers are known as（）.

A.dirty cargoes
B.caustic cargoes
C.wet cargoes
D.bulk cargoes

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單項(xiàng)選擇題

Chain slings are suitable for heavy slender articles, such as（）.

A.timber or steel rails
B.locomotives or boilers
C.railway passenger coaches
D.motor vehicles

單項(xiàng)選擇題

Chemical burns are caused by the skin coming in contact with（）.

A.acids or alkalies
B.diesel oil
C.acids, but not alkalies
D.alkalies, but not acids

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