单项选择题
A.displacement B.weight C.power D.capacity
The defective places in the furnace （） with fire bricks...
单项选择题The defective places in the furnace （） with fire bricks.
A.should be paved B.should be cleaned C.should be dismantled D.should be welded
After fitting back in place the gear wheels, don’t forg...
单项选择题After fitting back in place the gear wheels, don’t forget to （） them.
A.fulfill B.eliminate C.grease D.bend
What separate the high pressure side from the low press...
单项选择题What separate the high pressure side from the low pressure side in a refrigeration system?（）
A.Condenser and thermal expansion valve B.King and solenoid valves C.Compressor and thermal expansion valve D.Condenser and solenoid valve
