97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

<acronym id="vcvhk"></acronym>

單項選擇題

PAN-PAN repeated three times over the radiotelephone indicates which type of message will follow?（）.

A.Distress
B.Safety
C.All clear
D.Urgency

你可能感興趣的試題

單項選擇題

Is extra power available（）emergency while maneuvering?

A.for
B.in
C.during
D.to

單項選擇題

A man aboard a vessel，signaling by raising and lowering his outstretched arms to each side，is indicating（）.

A.danger，stay away
B.all is clear，it is safe to pass
C.the vessel is anchored
D.a distress signal

<kbd id="qa7kg"><i id="qa7kg"><sup id="qa7kg"></sup></i></kbd>

<track id="qa7kg"><address id="qa7kg"><pre id="qa7kg"></pre></address></track>

<nav id="qa7kg"><address id="qa7kg"></address></nav><optgroup id="qa7kg"><i id="qa7kg"><thead id="qa7kg"></thead></i></optgroup>