She tried to_______laughing，but it didn’t work;the performer gave her an angry look at her.

A．prevent

B．stop from

C．stop

D．keep

双手及关节等功能部位深度烧伤，宜采取（）

A.清创植皮术

B.切痂自体微粒皮肤移植异体皮覆盖术

C.削、切痂后整张中厚自体皮肤移植术

D.削痂植皮术

E.蚕食脱痂植皮术