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單項(xiàng)選擇題

As the temperature for a given mass of air increases，the（）.

A.dew point increases
B.dew point decreases
C.relative humidity increases
D.relative humidity decreases

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單項(xiàng)選擇題

Anticyclones are usually characterized by（）.

A.dry，fair weather
B.high winds and cloudiness
C.gustiness and continuous precipitation
D.overcast skies

單項(xiàng)選擇題

An occluded front on a weather map is colored（）.

A.blue line
B.purple line
C.dashed blue line
D.alternate red and blue line

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