In order to save the seriously wounded soldier, the doctor decided to _____his left leg.[ ]

A. take away

B. take out

C. take up

D. take off

治疗室性心律失常的首选药物是（）

A.奎尼丁

B.维拉帕米

C.普萘洛尔

D.利多卡因

E.胺碘酮