皮皮学，免费搜题
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搜题
【单选题】
头面部的手术术后卧位是A.
头部抬高15-30
B.
头低足高位
C.
平卧位
D.
低坡半卧位
E.
足高头低位
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反馈参考答案：
举一反三
【单选题】_____supplies pilot air to the control cylinders air start valves.
A.
An air compressor
B.
An indicator cock
C.
An air distributor
D.
A safety valve
【单选题】_____ supplies pilot air to control the cylinder air start valves.
A.
An air compressor
B.
An indicator cock
C.
An air distributor
D.
A safety valve
【单选题】supplies pilot air to the control cylinders of the cylinder air start valves.
A.
An air compressor
B.
An indicator cock
C.
An air distributor
D.
A safety valve
【单选题】_______is usually driven by the engine camshaft and supplies pilot air to the cylinder air start valve.
A.
An air receiver
B.
An operating valve
C.
An automatic valve
D.
An air distributor
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