问题

Coast Guard approved buoyant work vest

Coast Guard approved buoyant work vests（）.

Amay be substituted for 10 percent of the required life preservers
Bshould be stowed adjacent to lifeboats and emergency stations
Cmay be used by boat crews and line handlers during lifeboat drills
Dshould be used when carrying out duties near a weather deck's edge

参考答案

参考解析：

分类：紧急通信题库

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