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【单选题】
急性肺脓肿的典型x线表现是( )A.
两上肺多发纤维空洞,周围纤维、斑片状密度较高阴影
B.
中下野见大团片状致密阴影,内见液平呈空洞
C.
肺野边缘部见空洞
D.
团块边缘有毛刺或呈分,中心有空洞,内壁不光整有结节
E.
大片状密度均匀、边缘模糊阴影
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【单选题】--Do you know when the London 2012 Olympic Games will start? --It will start ________ July 27 th , 2012. You can visit London that summer.
A.
at
B.
on
C.
in
D.
for
【单选题】—Do you know _______ the Boao Fonim (论坛) for Asia this year lasted? —Three days, from April 11th to 13th. [ ]
A.
how often
B.
how about
C.
how long
D.
how soon
【单选题】—Do you know when the 29th Olympic Games ______? —Yes, in 2008.
A.
hold
B.
is held
C.
was held
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