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【单选题】
男，56岁，咳嗽、痰中带血2个月，既往有“老慢支”，入院各项检查证实为左侧中央型肺癌，手术需行左全肺切除术。下列检查中哪一项表明开胸手术是禁忌的？A.
心电图示ST段及T波有改变
B.
肺功能测定最大能气量为预计值的75%
C.
胸片示左全肺不张
D.
血气分析PaO210kPa75mmHg
E.
血气分析PaCO2 8kPa60mmHg
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反馈参考答案：
举一反三
【单选题】有机磷农药中毒时,骨骼肌痉挛主要是由于
A.
ACh释放减少
B.
ACh释放增加
C.
胆碱酯酶活性降低
D.
胆碱酯酶活性增强
E.
终板膜上的ACh门控通道功能增强
【单选题】A diverse group formed each year to compete in a sport is an excellent example of team building. Groups develop into 'teams' when their common purpose is understood by all of the members. Within effec...
A.
cooperation in sports
B.
productive team
C.
advantages of being in a team
D.
effective teamwork
【单选题】听力原文： 15 people are to appear in court in Manchester today following disturbances on a train bringing football supporters back from matches in London.Eyewitnesses report that the trouble began when gr...
A.
15
B.
50
C.
5
D.
S
【单选题】—It’s really nice of you to giv e me a hand in time! —____________
A.
Thank you.
B.
No, no.
C.
With pleasure.
D.
It ’s my pleasure.
【简答题】、 在具有 n 个结点的有向图中,任何基本通路的长度都不超过 。
【单选题】听力原文： Fifteen people are to appear in court in Manchester today following disturbances on a train bringing football supporters back from matches in London. Eyewitnesses report that the trouble began w...
A.
between football fans supporting rival teams
B.
between football players of rival teams
C.
between football supporters and the police
D.
between football players and the police
【简答题】在全封闭压缩机中,油直接接触绕组,要求有___KV以上的击穿电
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