The witness who appeared in court ____ to speak out the truth instead of covering it up．

A．encouraged

B．has been encouraging

C．was encouraging

D．had been encouraged

女，7岁。因舌根部血管瘤拟行手术切除。

麻醉方法应为（）

A.局麻

B.针刺麻醉

C.氯胺酮分离麻醉

D.静脉麻醉

E.气管内插管全麻