单选题
中学教育理论综合
2022-09-20
Which of the following statements is true according to the passage?
A．20% of all high school students fall asleep in school during school time.
B． Most students go to bed at 9:00 p.m. and wake up at 6:00 a.m. to get a good nine hours of sleep before 11:00 in the evening.
C． People are likely to fall asleep before 11:00 in the evening.
D． Most high school students need at least 9 hours of sleep a day.
参考答案
D
答案解析
根据第三段“The majority of teenagers needs 9 to 10 hours of sleep a day．”可知，大部分青少年一天需要9～10个小时的睡眠。故D项正确。
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