观察心脏左心房早期增大应选择何种最佳位置并服钡剂检查()
A.左前斜位相
B.右前斜位相
C.后前位相
D.卧位相
E.立位相
参考答案:B
_____________that she was going off to sleep, I asked if she'd like that little doll on her bed. [ ]
A. Seeing
B.To see
C.See
D.Seen
企业生命周期理论将企业的发展分为()。
A.创业阶段
B.集合阶段
C.规范化阶段
D.精细阶段
E.衰弱阶段