多选题 1.00分

共用题干
More Than 8 Hours Sleep Too Much of a Good Thing

  • A.Kripke's Research
  • B.Dangers of Habitual Shortages of Sleep
  • C.Criticism on Kripke's Report
  • D.A way of Overcoming Insomnia
  • E.Sleep Problems of Long and Short Sleepers
  • F.Classification of Sleep Problems