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
If you observe the point of cloud convergence shifting to the right and the “bar”of the storm appears to move along the horizon（）.
In the Northern Hemisphere，the right half of the storm is known as the dangerous semicircle because（）.
What is the first visible indication of the presence of a tropical cyclone or hurricane（）.
In the Northern Hemisphere，an observer at point II in the weather system should experience a wind shift from the（）.
Which condition indicates that you are in a hurricane’s dangerous semicircle in the Northern hemisphere（）.
MIST is caused by（）.
The moisture equilibrium chart can be used to determine the（）.
In regions near the poles，the winds are generally described as（）.
When your vessel is on or near the path of an approaching tropical storm the（）.
Which of the following is not a wind（）.