问题
单项选择题
与血的运行关系最为密切的是( )
A．肺脾肾
B．心脾肝肾
C．心肺肝脾
D．肺脾肾肝
E．心肺脾肾
答案
参考答案：C
解析：[知识点] 血的功能
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与血的运行关系最为密切的是( )
A．肺脾肾
B．心脾肝肾
C．心肺肝脾
D．肺脾肾肝
E．心肺脾肾
参考答案：C
解析：[知识点] 血的功能
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| When you are having class in the early morning, it is not unusual to notice your classmate sitting beside you yawning. He 1 that he didn't have a sound sleep the night before. Many 2 don't get adequate sleep because they are burdened with too much homework, which keeps them up at night doing countless exercise. Some teens cannot 3 at night even when they want to so much. Researches show that during your teenage years, the body's biological clock is ___4_ ,telling you to sleep later at night and wake up 5 in the morning. But 6 in the body clock aren't the only reason teens lose sleep. Lots of people have insomnia(失眠). The most common cause of insomnia is 7 . But all sorts of things can lead to insomnia, including 8 discomfort, emotional troubles and even sleeping environment. It's common for everyone to have insomnia occasionally. But if it 9 for a month or more, go and consult a doctor. Most teens have 10 sometimes, which may make you sweat. But, if they are too frequent, a person's sleep pattern can be seriously 11 . The most common cause of them is emotional 12 , such as fear, stress or anxiety. If you have them a lot, you're also supposed to talk to a 13 . Medical specialists encourage teens to make lifestyle changes to help them develop good sleeping 14 . Most probably you know that a cup of coffee can keep you 15 at night, but did you know that playing video games or watching TV does the same? | |||
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