标题: XDF 语法185题求解 谢谢~~~~~ [打印本页] 作者: ClarkLee 时间: 2010-10-7 23:49 标题: XDF 语法185题求解 谢谢~~~~~ Recently implemented "Shift-work equations" based on studies of the human sleep cycle have reduced sickness, sleeping on the job, (fatigue among shift workers, and have raised) production efficiency in various industries. 括号中是划线部分
A) Fatigue among shift workers, and have raised b) Fatigue among shift workers, and raised C) and fatigue among shift workers while raising