A flashing red light displayed at a single lock means that the lock（）. -题库考试答案搜索网

A flashing red light displayed at a single lock means that the lock（）.

单选题

2022-01-04 13:03

A、is ready to use but vessels must stand clear
B、is ready to use and vessels may approach
C、cannot be made ready immediately and vessels shall stand clear
D、cannot be made ready immediately but vessels may approach

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正确答案

C

试题解析

标签：狭水道、冰区与运河航行

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