A psychrometer has two thermometers that provide dry bulb and wet bulb temperatures.By comparing these two temperature readings with a set of tables， you can determine the（）

A psychrometer has two thermometers that provide dry bulb and wet bulb temperatures.By comparing these two temperature readings with a set of tables， you can determine the（）
A.atmospheric pressure
B.wind speed
C.relative humidity and dew point
D.wind chill factor
正确答案：relative humidity and dew point