皮皮学，免费搜题
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【单选题】
肾上腺素与局麻药配伍的目的是A.
使局部血管收缩，减少出血
B.
减少局麻药吸收，延长局麻作用时间
C.
防止局麻药引起的低血压
D.
防止过敏性休克
E.
以上都不是
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】云南省简称云或（），省会昆明。
【简答题】1988 年以前,我国的保险业由 独家经营。
【单选题】Section B Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You shoul...
A.
Every child in hospital receives some teaching.
B.
Not enough is known about hospital teaching.
C.
Hospital teaching is of poor quality.
D.
The special children's hospitals are worst off.
【单选题】Section B Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You shoul...
A.
Every child in hospital receives some teaching.
B.
Not enough is known about hospital teaching.
C.
Hospital teaching is of poor quality.
D.
The special children's hospitals are worst off.
【多选题】计算机运行速度明显变慢,经常会“假死”,重装操作系统后问题仍然存在,可能原因是
A.
机箱内灰尘较多，CPU温度过高
B.
CPU供电电路有问题，导致CPU运行不稳定
C.
键盘坏了
D.
系统电源老化，致使CPU供电不足
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