单项选择题
The effective temperature of air is dependent upon（）
Ⅰ.relative humidity
Ⅱ.air velocity
A.Ⅰonly
B.Ⅱonly
C.Both Ⅰand Ⅱ
D.NeitherⅠnor Ⅱ
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相关考题
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单项选择题
When air is at its dew point it is at its（）
A.lowest absolute humidity
B.lowest relative humidity
C.highest absolute humidity
D.highest relative humidity -
单项选择题
The latent heat of water vapor in air is dependent upon the （）
A.dry bulb temperature
B.wet bulb temperature
C.dew point
D.dry point -
单项选择题
If you find an extremely large refrigerant leak while using a halide torch, your flame will（）
A.change from blue to orange
B.‘flare up’ and remain lighted
C.probably go out
D.stay blue
