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【判断题】
全部椎骨的椎间椎管( ) A. 对 B. 错A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】Air moves from places where the pressure is high to places where the pressure is low.
【简答题】A．It is from some kind of threat. B．It is from a pressure. C．It is from a desire. D．It is from personal commitment.
【单选题】The engine is started with( ) supplied from air receivers.
A.
pressure Oil
B.
pressure water
C.
compressed air
【单选题】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
【简答题】A．It is from some kind of threat. B．It is from a pressure. C．It is from a desire. D．It is from personal commitment.
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