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
The wind is（）and decreasing.
MIST is caused by（）.
If you observe the point of cloud convergence shifting to the right and the “bar”of the storm appears to move along the horizon（）.
The southeast trade winds actually blow toward the（）.
Which condition indicates that you are in a hurricane’s dangerous semicircle in the Northern hemisphere（）.
In the Northern Hemisphere，when the wind at your location is northerly，the low pressure center causing the wind is located to your（）.
Two well-developed high pressure areas may be separated by a（）.
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（）.
When your vessel is on or near the path of an approaching tropical storm the（）.
In the Southern Hemisphere winds in a low pressure system rotate in a（）.