单项选择题
The quantity of cooled air delivered by an air conditioning unit should （） the sum of the quantity of air re-circulated to the unit and the quantity mechanically exhausted.
A.balance
B.not balance
C.be more than
D.be less than
点击查看答案&解析
相关考题
-
单项选择题
The shutter of the evaporator was blocked with （）, it means there was too much evaporation.
A.ice
B.wooden board
C.iron plate
D.cotton waste -
单项选择题
The inner part of the condenser should be cleaned with （）.
A.gas oil
B.diesel oil
C.chemical compound
D.Freon-12 -
单项选择题
In the cargo winch, spur reduction gearing transfers the motor drive to （）.
A.the toping light
B.the board brake
C.the fail-safe
D.the barrel shaft
