问题：
[单选,材料题] Who are the first to make the success of sit-in become true?
Black college students and whites．。First-class citizens．。The Blacks of Atlanta．。Young men and women in Greensboro．。
aused wished。Guessed。ressed。
said。agree。make sure。states。
include。including。as well as。also。
never。ever。sometimes。often。
问题：
[单选,材料题] The word “deeper” in paragraph 1 is closest in meaning to which of the following?
heavier．。louder．。stronger．。happier．。
问题：
[单选,材料题] Which of the following shows that a person is NOT dreaming in his sleep?
His eyes begin to move．。His breathing becomes faster．。His heart rate increases．。His eyes stop moving．。
问题：
[单选,材料题] The subject of this passage is ________．
why people sleep。the human need for REM sleep。the characteristic of REM sleep。physical changes in the human body。
问题：
[单选,材料题] Which of the following is the best title of the article?
REM Sleep。Two Types of Sleep。Sleepers。What Happens to Sleepers。
