A.moderate but easily navigated
B.calm
C.mountainous and confused
D.mountainous but fairly regular as far as direction is concerned
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A.high relative humidity
B.frequent showers and thunderstorms
C.steep pressure gradients
D.frequent calms
A.steady，constant winds
B.frequent rain showers and thunderstorms
C.steep pressure gradients
D.low relative humidity
A.high winds
B.high overcast clouds
C.calm or light winds
D.fog or steady rain
A.north to south
B.south to north
C.east to west
D.west to east
A.3 times the depth of water
B.6 times the depth of water
C.10 times the depth of water
D.15 times the depth of water
最新試題
Which condition indicates that you are in a hurricane’s dangerous semicircle in the Northern hemisphere（）.
The force resulting from the earth’s rotation that causes winds to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere is called（）.
In the relatively calm area near the hurricane center，the seas are（）.
The wind is（）and decreasing.
Which condition suggests that your present position lies in the navigable semicircle of a tropical storm（）.
When experiencing heavy winds，you should reef sails to（）.
Which of the following is not a wind（）.
The moisture equilibrium chart can be used to determine the（）.
If you observe the point of cloud convergence shifting to the right and the “bar”of the storm appears to move along the horizon（）.
When your vessel is on or near the path of an approaching tropical storm the（）.