Work time has been reduced in the past 200 years from about 12 hours a day to less then 8 hours per day and the working week from 7 days to 5.

在过去200年里，工作时间已经从每天大约12小时减少到每天低于8小时以及每周工作7天减为5天。

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Methods: Venous blood was collected on an empty stomach from patients in the test and control groups and then 8 indexes were detected.

方法：对急性缺血性脑梗死组及对照组空腹采静脉血检测血液流变学8项指标。

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Methods: Venous blood was collected on an empty stomach from patients in the test and control groups and then 8 indexes were detected.

方法：对急性缺血性脑梗死组及对照组空腹采静脉血检测血液流变学8项指标。

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