考试
1970-01-01 08:00:00

【单选题】 The wind is ESE,and a sa

题目描述

【单选题】 The wind is ESE,and a sailing vessel is steering NW. Which fog signal should she sound?【】

AOne blast at one-minute intervals

BOne blast at two-minute intervals

CTwo blasts at one-minute intervals

DOne prolonged and two short blasts at two-minute intervals

答案解析

D

D

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