问题
单项选择题
糖尿病酮症酸中毒抢救的主要措施（）。
A.抗感染
B.纠正电解质紊乱
C.补生理盐水+胰岛素
D.补液
E.补碱性液
答案
参考答案：C
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糖尿病酮症酸中毒抢救的主要措施（）。
A.抗感染
B.纠正电解质紊乱
C.补生理盐水+胰岛素
D.补液
E.补碱性液
参考答案：C
Do you know how much your children sleep? According to the National Sleep Foundation, should sleep twelve to eighteen hours of every twenty-four. With a gradual to twelve to fourteen hours for toddlers(初学走路的孩子) one to three; eleven to thirteen hours for three to five; and ten to eleven hours for schoolchildren five to ten. But things get really at adolescence. Not only do teenagers need more sleep than __---eight and a half to nine and a quarter hours a night, according to the sleep foundation - but the times which they get sleepy and are able to awaken and feel rested shift in a that does not match to the times at most schools. Sleep studies have shown that the typical teenager does not fall asleep readily before 11 p. m. or later. many have to get up by 6 a. m. or to get to school for a class starts at 7:30 or 8 a.m. More than a few off during that class, and often the one as well. Even if awake, they're in no condition to learn much of anything. In one study, more than 90 percent of teenagers they slept less than the nine hours a night, and 10 percent said they slept less than six hours. _ James B. Maas, a Cornell University psychologist and Leading sleep researcher, has observed, most teenagers are "walking zombies(僵尸)" they get far too little sleep.
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