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
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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
A.Upwind
B.Downwind
C.Crosswind
D.Downcurrent
A.short confused swells
B.gradually increasing white clouds (mare's tails)
C.pumping barometer
D.continuous fine mist-like rain
A.ice crystals
B.water droplets
C.snow crystals
D.nitrogen
最新試題
MIST is caused by（）.
In the Northern Hemisphere，an observer at point II in the weather system should experience a wind shift from the（）.
When a hurricane passes into high latitudes over colder water and the source of heat is disrupted，the storm assumes the characteristics of（）.
What kind of conditions would you observe as the eye of a storm passes over your ship’s position（）.
When a tornado moves over the water from land it is called a（）.
The wind is（）and decreasing.
In the Southern Hemisphere winds in a low pressure system rotate in a（）.
In the Northern Hemisphere，the right half of the storm is known as the dangerous semicircle because（）.
The southeast trade winds actually blow toward the（）.
What kind of pressure systems travel in easterly waves（）.