单项选择题
The form of cloud often known as mackerel sky which is generally associated with fair weather is（）.
A.nimbostratus
B.stratus
C.cirrocumulus
D.cumulonimbus
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相关考题
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单项选择题
The fog produced by warm moist air passing over a cold surface is called（）.
A.conduction fog
B.radiation fog
C.frontal fog
D.advection fog -
单项选择题
The belt of light and variable winds between the westerly wind belt and the northeast trade winds is called the（）.
A.subtropical high pressure belt
B.intertropical convergence zone
C.doldrum belt
D.polar frontal zone -
单项选择题
The atmosphere in the vicinity of a high pressure area is called a(n)（）.
A.anticyclone
B.cold front
C.occluded front
D.cyclone
