患者女性,垫枕右侧卧位,左侧肩胛角尖端可叩得一相对浊音区,撤去枕头浊音区消失,此浊音是由于
A.左肺炎B.左肺脓肿C.脊柱弯曲D.空洞型肺结核E.肺梗死
参考答案:C
The speech by the mayor of Shanghai before the final voting for EXPO 2010 is strongly impressed _____
my memory. [ ]
A. to
B. over
C. by
D. on
下列哪个朝代,开始以户籍征发赋税和徭役?()
A.秦朝
B.北魏
C.西汉
D.隋朝