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【单选题】
肺性脑病不能用高浓度吸氧的主要原因是A.
缺氧不是主要因素
B.
可引起氧中毒
C.
解除了主动脉体和颈动脉体的兴奋性
D.
促使CO 2 排出过快
E.
诱发代谢性碱中毒
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举一反三
【简答题】设a={2，-3，1}，b={1，-2，3}，c={2，1，2}，向量r满足r⊥a，r⊥b，Prj c r=21，求r
【单选题】对于边沿触发的 D 触发器,下面( )是正确的。
A.
输出状态的改变发生在时钟脉冲的有效边沿
B.
任何时刻的输出状态都等于 D 输入 状态
C.
输出跟随每一个CP边沿的输入变化
D.
以上都对
【简答题】What worried the mother most was __________ the Internet after class in this school. A．her son’s not forbidding surfing B．her son’s not being forbidden to surf C．her son’s being not forbidden to surf ...
【单选题】How does wheelwright Bian convince the duke that what he is reading is nothing, but rubbish left by a dead man?
A.
He uses dialectical language to debate with the duke
B.
He explains to the duke by asking him to make a wheel himself
C.
He uses a fable story to teach the duke a lesson
D.
He uses his own experience of making wheels to persuade the duke
【简答题】设全集U=R，集合M={x|3a-1＜x＜2a，a∈R}，N={x|-1＜x＜3}，若N C U M，求实数a的取值集合．
【单选题】What is the author' s attitude towards the father and the son?
A.
Indifferent.
B.
Sympathetic.
C.
Appreciative.
D.
Difficult to tell.
【简答题】Duke分期A应是（ ）|Duke分期C应是（ ）A. 癌穿透浆膜B. 癌限于粘膜及粘膜下层C. 癌限于肠壁D. 癌伴局部淋巴结转移E. 癌伴远处转移
【简答题】univer____ty (大学)
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