單項(xiàng)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.all is clear，it is safe to approach
D.a distress signal

你可能感興趣的試題

A distress signal（）.

A.consists of 5 or more short blasts of the fog signal apparatus
B.consists of the raising and lowering of a large white flag
C.may be used individually or in conjunction with other distress signals
D.is used to indicate doubt about another vessel's intentions

單項(xiàng)選擇題

A distress signal（）.

A.consists of 5 or more short blasts of the fog signal apparatus
B.consists of the raising and lowering of a large white flag
C.may be used separately or with other distress signals
D.is used to indicate doubt about another vessel's intentions

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

你可能感興趣的試題

A distress signal（）.

A distress signal（）.

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