单项选择题
A.high winds B.high overcast clouds C.calm or light winds D.fog or steady rain
In restricted visibility, a vessel which detects by rad...
单项选择题In restricted visibility, a vessel which detects by radar alone the presence of another vessel shall determine if a close quarters situation is developing or risk of collision exists. If so, she shall（）.
A.sound the danger signal B.when taking action, make only course changes C.avoid altering course toward a vessel abaft the beam D.All of the above
In revised editions of admiralty charts the（）are correc...
单项选择题In revised editions of admiralty charts the（）are corrected first.
A.smaller scales B.larger scales C.smaller scales and larger scales D.moderate scales
In the doldrums you can expect（）.A.steady, constant win...
单项选择题In the doldrums you can expect（）.
A.steady, constant winds B.frequent rain showers and thunderstorms C.steep pressure gradients D.low relative humidity
