A tug is towing three manned barges in line in fog. The first vessel of the tow should sound （）.<br>A:no fog signal<br>B:one short blast<br>C:one prolonged and three short blasts<br>D:one prolonged，one short，and one prolonged blast

A tug is towing three manned barges in line in fog. The first vessel of the tow should sound （）.
A:no fog signal
B:one short blast
C:one prolonged and three short blasts
D:one prolonged，one short，and one prolonged blast

出自：海船船员证

提示：
同一【IP】的非会员用户每天可免费获取10次答案

收藏本站【zk.995w.com】，下次访问不迷路

本站试题总数:【10252937】个 (题库试题定时更新)