术后常见循环系统并发症不包括()
A.高血压
B.心搏骤停
C.严重心律失常
D.心绞痛
E.低血压
参考答案：E
---Excuse me, do you know when the film is on?
--- The poster will be _________this afternoon. It will tell you the time.
A．put down
B．put on
C．put up
D．put away
正常人在30岁前，角膜内皮细胞的平均密度每平方豪米为______
A．6000～8000个 B．3000～4000个 C．2600～2800个D．2150～2400个 E．1500～2000个
