單項(xiàng)選擇題

In the doldrums you will NOT have（）.

A.high relative humidity
B.frequent showers and thunderstorms
C.steep pressure gradients
D.frequent calms

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單項(xiàng)選擇題

In the doldrums you can expect（）.

A.steady，constant winds
B.frequent rain showers and thunderstorms
C.steep pressure gradients
D.low relative humidity

單項(xiàng)選擇題

In reading a weather map，closely spaced pressure gradient lines would indicate（）.

A.high winds
B.high overcast clouds
C.calm or light winds
D.fog or steady rain