患者,男性,53岁,腹股沟肿块伴疼痛,不能回纳3d。2h前疼痛突然缓解。
该患者可能的诊断是
A.滑动性疝
B.难复性疝
C.嵌顿性疝
D.绞窄性疝
E.股疝
参考答案:D
— Hey, you haven't been acting like yourself. Is everything OK —().
A. I'm fine, thanks
B. Sure, it is
C. That's good
D. It's OK
当新氢机的二级缸排气压力偏低、吸气压力升高,且吸气温度升高,可以判断为()
A、一级缸排气阀故障
B、一级缸吸气阀故障
C、二级缸排气阀故障
D、二级缸吸气阀故障