单项选择题
The air compressor pumps air to the（）.
A.engine cylinder
B.air bottle
C.evaporator
D.condenser
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相关考题
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单项选择题
The air compressor pumps air to the （）.
A.expansion tank
B.combustion chamber
C.air receiver
D.evaporator -
单项选择题
The air compressor pumps air to the （）.
A.air cylinder
B.combustion chamber
C.steam drum
D.expansion tank -
单项选择题
The （） stage air compressors are widely used on board the ship.
A.single
B.Ⅱ
C.Ⅲ
D.multiple
