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Title: Periods of R sleep alternate with periods of N sleep in a cycle that recurs about every ________ ... Post by: rockabye on Apr 17, 2018 Periods of R sleep alternate with periods of N sleep in a cycle that recurs about every ________ minutes or so.
A) 210 B) 60 C) 5 D) 90 Title: Re: Periods of R sleep alternate with periods of N sleep in a cycle that recurs about every ________ ... Post by: Omarian on Apr 17, 2018 Content hidden
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