题目Wake up,boys and girls!Put up your hand if you try to repair your tiring body by sleeping in(睡懒觉) on weekends.(1) F. The ten-day study came out in the magazine Current Biology.Volunteers were divided into three groups.The first group enjoyed nine hours' s...
The ten-day study came out in the magazine Current Biology.Volunteers were divided into three groups.The first group enjoyed nine hours' sleep each night.The second group was allowed to sleep only five hours each night.The third group was given five hours' sleep Monday ...