The terrorists entered the building（ ） as medical workers.

The terrorists entered the building（ ） as medical workers.
A、disguising
B、distorting
C、disordering
D、distinguishing
【正确答案】：A
【题目解析】：disguise v. 假扮，伪装； distort v. 扭曲，曲解 ；disorder n. 混乱，骚乱 ；distinguish v. 区分 ；distinguish between A and B / A from B。句意：恐怖分子伪装成医务人员进入大楼。