肺痈主要病理基础是（）
A．热伤肺气
B．热壅血瘀
C．肉腐血败
D．热毒留恋
E．痰浊上蒙
参考答案：B
.I did not accept any of the many offerings,because I found_____satisfactory.[ ]
A.all of them not
B.none of them
C.neither of them
D.either of them
DCS系统的基础和核心是（）
