单项选择题
Which of the fluids listed is normally used to condense the primary refrigerant in a shipboard central air conditioning system?（）
A.Air or Nitrogen
B.Seawater or Fresh water
C.Sodium Nitrate brine
D.Calcium Sulfate brine
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相关考题
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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 -
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
