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问题详情

As you approach mile 659.4 AHP，you see on the right descending bank a flashing green light. This light marks（）.

A、a lock that is open

B、a sunken barge

C、a dolphin，water intake and discharge

D、the end of a wharf

时间：2022-01-05 16:35 关键词：船舶辅机海船船员考试

答案解析

C

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