What ____________ you like for lunch?[ ]
A. are
B. do
C. does
答案:B
小儿坐位时颈静脉饱满可见于以下情况,哪项除外()
A.右心衰竭
B.左心衰竭
C.心包积液
D.缩窄性心包炎
E.哭闹
简述一次应力。