When whistle signals are used for launching lifeboats，one short blast means（）.<br>A:use the float-free method only<br>B:lower all boats<br>C:raise all boats<br>D:drill is over，secure all boats

When whistle signals are used for launching lifeboats，one short blast means（）.
A:use the float-free method only
B:lower all boats
C:raise all boats
D:drill is over，secure all boats

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)