[简答题]Passage 2 Questions 6 to 10 are based on the following passage： As the school year kicks off, parents are once again struggling to cajole （哄骗） and, if need be, drag their exhausted teens out of bed, That image may make you laugh, but lack of sleep is no joke. （77）Teenagers who don’t get enough rest have more learning, health, behavior and mood problems than students who get at least nine hours a night. Long-term lack of sleeo is tied to heart disease, overweight, depression and a shortened life. Lack of sleep can be especially deadly for teens； car accidents are the leading cause of death among teenagers , and safety experts believe sleepy driving is a major factor. Unfortunately, few teenagers get the sleep they need. In a survey of middle- and high-school students, University of Colorado researchers found that 82 percent said they woke up tied and unrefreshed, and more than half had trouble concentrating during the day at least once a week. Blame multitasking for some of this. Ma
A. A．Educating their students about the importance of sleep
B．Monitoring their students’ late-night activities
C．Delaying school start times
D．Setting strict rules.

最新试题

• ●    刘某，男，65岁，刻下症眩晕而见精神萎靡，少寐多梦，健忘，腰膝酸软，遗精耳鸣，四肢不温，形寒怯冷，舌
• ●    [单选题]患儿，女，1岁。冬季发病，出现腹泻，水样大便，无腥臭味，每日7～8次。大便常规检查未见异常
• ●    在生物转化中最常见的一种结合物是（）
• ●    多孔填料
• ●    经差、纬差的方向是根据（）来确定的。
• ●    [单选题]远方遥控操作（ ）前，宜对现场发出提示信号，提醒现场人员远离操作设备。