精选优质文档-倾情为你奉上1995年全国硕士研究生入学统一考试英语试题Section IICloze TestDirections:For each numbered blank in the following passage, there are four choices marked A, B, C and D. Choose the best one and mark your answer on ANSWER SHEET 1 by blackening the corresponding letter in the brackets with a pencil. (10 points)Sleep is divided into periods of so-called REM sleep, characterized by rapid eye movements and dreaming, and longer periods of non-REM sleep. kind of sleep is at all well-unde
