无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

<address id="69muz"><dl id="69muz"></dl></address>

<option id="69muz"></option>

<acronym id="69muz"></acronym>

單項(xiàng)選擇題

Which spoken emergency signal would you use to call a boat to come assist a man overboard?（）

A.Distress signal
B.Urgency signal
C.Safety signal
D.None of the above

你可能感興趣的試題

單項(xiàng)選擇題

Which mooring line is likely to undergo the most strain when docking a ship under normal conditions?（）

A.Bow line
B.Breast line
C.Spring line
D.Stern line

單項(xiàng)選擇題

Which mooring line has the least elasticity?（）

A.Dacron
B.Nylon
C.Esterlene
D.Polypropylene

<strong id="vohf9"><wbr id="vohf9"><span id="vohf9"></span></wbr></strong>