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.
fatigue among shift workers, and have raised
fatigue among shift workers, and raised
and fatigue among shift workers while raising
lowered fatigue among shift workers, and raised
and fatigue among shift workers was lowered while raising
sickness sleeping on the job fatigue among shift workers 三个是并列的 错选D 因为 sickness, sleeping on the job 中间是逗号 不是 and
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