临床上术后镇痛最多用的还是（）。 A.肌注哌替啶 B.口服安乃近

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问题单项选择题

临床上术后镇痛最多用的还是（）。

A.肌注哌替啶

B.口服安乃近

C.肋间神经阻滞

D.椎管内镇痛

E.PCA

答案

参考答案：A

选择题

----I don’t suppose the police know who did it.

----Well, surprisingly they do. A man has been arrested and _____ now.

A．has being questioned

B．is questioning

C．has questioned　　

D．is being questioned

判断题

YJ29滤嘴接装机滤嘴排直鼓轮止动块的作用是将从错位鼓轮送来的滤嘴段按要求排列整齐。