A sling is a device used in（）.<br>A:hoisting cargo aboard a vessel<br>B:hoisting personnel aboard a vessel<br>C:securing a small boat to a large vessel<br>D:hoisting the anchor

A sling is a device used in（）.
A:hoisting cargo aboard a vessel
B:hoisting personnel aboard a vessel
C:securing a small boat to a large vessel
D:hoisting the anchor

出自：海船船员证

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