单项选择题
A.Stratocumulus clouds or strange birds B.Rain and increasing winds C.An exceptionally long swell D.Dark clouds and the“bar”of the storm
Two well-developed high pressure areas may be separated...
单项选择题Two well-developed high pressure areas may be separated by a（）.
A.Hill of low pressure B.Trough of low pressure C.Valley of low pressure D.Ridge of low pressure
Tropical cyclones are classified by form and intensity....
单项选择题Tropical cyclones are classified by form and intensity.Which system does not have closed isobars（）.
A.Hurricane B.Tropical disturbance C.Tropical depression D.Cyclone
The wind is（）and decreasing.A.anticlockwise rotatingB.a...
单项选择题The wind is（）and decreasing.
A.anticlockwise rotating B.anticlock rotating C.clockwise rotating D.clock rotating
