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. A) fatigue among shift workers, and have raised B )fatigue among shift workers, and raised C) and fatigue among shift workers while raising D )lowered fatigue among shift workers, and raised E) and fatigue among shift workers was lowered while raising 答案选的E，可是我觉得A对，看了OA以后，我依然有点困惑 我的思路是这样的：have reduced 和have raised 是平行的（大平行），sickness, sleeping on the job, fatigue among shift workers这三个也是平行（小平行） 所以我选E。 另外，我认为，再E选项中，fatigue among shift workers was lowered是一句话，而他的前面sickness, sleeping on the job,是名字和名词性短语，这样他们三个就不平行了啊
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