腹外疝的疝环位置相当于疝囊的A．底部 B．体部 C．颈体交界处 D．颈部 E．以上都

---Have you heard of ________ death of Steven Jobs?

--- Yes. It must be________ shock to Apple fans.

A．the; the

B．a; the

C．the; a

D．a; /

____these interruptions, the meeting would have finished earlier.

A．Except for

B．Apart from

C．But for

D．Other than

Do you want to know __________ my school?[ ]

A. on

B. about

C. from

D. at

简述升级协调会要点。

有关局麻药的作用原理，下述正确的是（）

A.减少活化的通道分数

B.减少失活的通道分数

C.抑制通道从静息转化为开放

D.激活通道从静息转化为开放

E.减少通过开放通道的离子流