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單項(xiàng)選擇題

Renew a cargo runner, please. （）

A.fall
B.stay
C.guy
D.sling

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We use TEU as the unit of the standard containers. Its length is（）.

A.40ft
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D.40m

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The safe working load of the derrick is （）.

A.5 tons
B.5 metres
C.5 feet
D.5 mile