严重三凹征的主要原因是（）
A.肺不张
B.上呼吸道阻塞
C.混合性呼吸道阻塞
D.弥漫性肺部病变
E.下呼吸道阻塞
参考答案：B
With more applications to be invented ______ computers, they are sure, for the most part, to
improve our life quality. [ ]
A. for
B. to
C. with
D. of
下列与形意拳名称不符的一项（）
A.心意拳
B.通背拳
C.心意六合拳
D.六合拳
lications to be invented ______ computers, they are sure, for the most part, to