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问题详情

After having activated the emergency position indicating radio beacon，you should（）.

A、turn it off for 5 minutes every half-hour

B、turn it off and on at 5 minute intervals

C、turn it off during daylight hours

D、leave it on continuously

时间：2022-01-04 10:05 关键词：紧急通信

答案解析

D

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