Generally speaking，with（）the weather becomes cloudy or overcast with strong winds.

A.check it with a barometer on another vessel
B.take readings from several barometers and average them
C.check it with the barometer at the ship chandlery
D.check it against radio or National Weather Service reports of the immediate vicinity

A.a certain area
B.all ocean areas
C.some areas
D.important areas

A.distance a wave travels between formation and decay
B.stretch of water over which a wave-forming wind blows
C.time in seconds required for two crests to pass a given point
D.measurement of a wave's steepness