产后出血应用宫腔填塞方法止血时,填塞纱条的取出时间是术后()。
A.12~24h
B.24~48h
C.48~72h
D.72h后
E.观察不出血即可取出
参考答案:B
The world will be different, and we will have to be prepared to ______ the change.
A.adapt to
B.adopt to
C.apply to
D.devote to
德尔菲法一般包括______个步骤。
A.三 D.四 C.五 D.六