观察PPD的时间为
A.12~24小时
B.12小时
C.72小时后
D.48~72小时
E.24~48小时
参考答案:D
Shelly had prepared carefully for her biology examination so that she could be sure of passing it on her
first ______.[ ]
A. attention
B. purpose
C. attempt
D. desire
下列属于全麻过程中并发症的是()
A.喉痉挛
B.头痛
C.肢体感觉障碍
D.血压上升
E.下肢运动障碍