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【单选题】
腹部禁用冷疗是为了防止( )A.
体温骤降
B.
循环障碍
C.
腹泻
D.
心率失常
E.
掩盖病情
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举一反三
【单选题】The average of the forward and after drafts is the ().
A.
mean draft
B.
true mean draft
C.
mean of the calculated drafts
D.
draft at the center of flotation
【单选题】X线平均波长（λmean）与最短波长（λmin）的关系，正确的是
A.
λmean=3.5λmin
B.
λmean=3.2λmin
C.
λmean=2.8λmin
D.
λmean=2.5λmin
E.
λmean=2.2λmin
【单选题】X线平均波长(λmean)与最短波长(λmean)的关系是
A.
λmean=3λmin
B.
λmean=5λmin
C.
λmean=2λmin
D.
λmean=5λmin
E.
λmean=λmin
【单选题】____You hurt her ,Mike. _____Yes, but I didn’t _________.
A.
mean to do
B.
mean to
C.
mean not to
D.
mean to it
【单选题】--- Ouch! You stepped on my toe! --- I’m sorry, I didn’t __________.
A.
mean to
B.
mean to do
C.
mean to have
D.
mean to step
【单选题】X线平均波长(λmean)与最短波长(λmin)的关系是
A.
λmean=3λmin
B.
λmean=2.5λmin
C.
λmean=2λmin
D.
λmean=1.5λmin
E.
λmean=λmin
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