
【名词&注释】
软组织损伤(soft tissue injuries)、锅炉水位计
[单选题]Sealing in pump shaft is achieved by means of the ( ).
A. gasket
B. packing
C. o-ring
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举一反三:
[单选题]“ Keep ________ to the beacon,” said the pilot
A. line
B. direction
C. back
D. straight
[单选题]锅炉水位计中水位始终静止不动,说明_________堵塞。
A. 通水管路
B. 通汽管路
C. A或B
D. A和B
[单选题]软组织损伤早期可用()方法止血
A. 热敷
B. 冰敷
C. 理疗
D. 酒精湿敷
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