按照要求，每艘救生艇筏的存放应使()名船员在()内完成降落和登乘的准备工作。-查字典考试网

按照要求，每艘救生艇筏的存放应使()名船员在()内完成降落和登乘的准备工作。

A、2/10min
B、3/10min
C、2/5min
D、3/5min

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