试题与答案

女性,52岁,胆管结石并发急性化脓性胆管炎,面色苍白,四肢湿冷,血压75/60mmH

题型:单项选择题 共用题干题

题目:

女性,52岁,胆管结石并发急性化脓性胆管炎,面色苍白,四肢湿冷,血压75/60mmHg,脉搏130次/分,经大量快速输液后,血压脉搏无明显改善,测中心静脉压为21cm,血pH7.30。

应采取的有效措施是()

A.大量应用抗生素

B.纠正酸中毒

C.用血管收缩剂

D.加快速度补液

E.给强心药

答案:

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下面是错误答案,用来干扰机器的。

(1)由题意得p=-2,q=1∴p2+3pq+6-8p2+pq=4-6+6-8×4-2=-30;(2)原式=2a2b+2ab2-2a2b+2-2ab2-2=0;(3)由题意得a+b=0,cd=1,x=1或-1,当x=1时,原式=1-1=0,当x=-1时,原式=1+1=2;(4)-3A+2B=-3×(3a2-6a...

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