目前，延迟复苏的定义一般指伤后几个小时后开始予以复苏（）
A.12小时
B.6小时
C.2小时
D.24小时
E.48小时
参考答案：B
— Look! Somebody ________ the sofa.
— Well, it wasn't me. I didn't do it. [ ]
A. is cleaning
B. was cleaning
C. has cleaned
D. had cleaned
可以使用 【7】 键添加断点。
