单项选择题
A.extremely cold air from shore passes over warmer water B.warm dry air from shore passes over cooler water C.cold ocean water evaporates into warm air D.cool rain passes through a warm air mass
RYUKYU S TO SE 6 BEC 4－5.ISOL SHWRS.SEA 3 M BEC 2 M.SWE...
单项选择题RYUKYU S TO SE 6 BEC 4－5.ISOL SHWRS.SEA 3 M BEC 2 M.SWELL SE 3－4M.This description is likely to be under the heading of（）.
A.FORECAST B.GALE WARNING C.SYNOPSIS D.STORM WARNING
Periodic publications notifying changes in，or additions...
单项选择题Periodic publications notifying changes in，or additions to，previously published navigational data are（）.
A.Supplements B.Annual Summary C.Navigational Warnings D.Notices to Mariners
On the high seas，a fog signal consisting of one prolong...
单项选择题On the high seas，a fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a（）.
A.vessel being towed B.fishing vessel engaged in trawling C.vessel at anchor warning you of her location D.power-driven pilot vessel on station underway
