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【单选题】
2岁男孩,诊断为法洛四联症,有血流动力学的改变不正确的是A.
肺动脉狭窄可导致血液进入肺循环受阻，右心室代偿性肥厚
B.
肺循环血量增加
C.
主动脉同时接受左、右心室血液
D.
支气管动脉和肺血管之间易形成侧支循环
E.
有右向左分流
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【单选题】Ihave never seen such a strange animal _______ 3 legs like that.
A.
with
B.
has
C.
on
D.
of
【单选题】I have never seen ______ little birds eat ______ many insects in ______ a short time. [ ]
A.
such; such; such
B.
so; so; so
C.
such; so; such
D.
so; such; so
【单选题】I have never seen to lose any weight, _____hard I try. [ ]
A.
even though
B.
no matter how
C.
as if
D.
ever since
【单选题】Dinosaurs have completely died out on the earth, never again. A . to be seen B . being seen C . seen D . seen
A.
to be seen
B.
being seen
C.
seen
D.
having been seen
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