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【单选题】
各类休克的共同病理生理基础是A.
对血压急骤下降引起的反应
B.
有效循环血量锐减及组织灌足不足
C.
外血管收缩
D.
神经系统剧烈反应
E.
外血管扩张反应
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举一反三
【单选题】I have known him for ten years. I ___ to know him in 2010.
A.
got
B.
have got
C.
was getting
D.
get
【简答题】I have known him _________ he was a boy of eight years
old.A. when B. since C. before D. while
【简答题】混凝土输送泵可分为( )和( )两类。
【单选题】Now he is artist . I have known him since he was one- year-old boy .
A.
a, an
B.
a, a
C.
an, an
D.
an, a
【单选题】I have known him for ten years. I ____________to know him in l999.
A.
got
B.
have got
C.
was getting
D.
get
【单选题】I have known him _________ he was a boy of eight years old.
A.
when
B.
since
C.
before
D.
While
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