问题
单项选择题 A型题
关于窦性心动过缓的描述，错误的是（）。
A.成年人心率<60次／分
B.可见于健康人
C.心率<55次／分时提示窦房结功能不全
D.常见于运动员或长期体育锻炼者
E.常见于正常成年人夜间睡眠时
答案
参考答案：C
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关于窦性心动过缓的描述，错误的是（）。
A.成年人心率<60次／分
B.可见于健康人
C.心率<55次／分时提示窦房结功能不全
D.常见于运动员或长期体育锻炼者
E.常见于正常成年人夜间睡眠时
参考答案：C
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| As the song goes "My future isn't a dream." I love the song which bring me confidence when 1 it every time. I believe that all our dreams can 2 if we have courage (勇气) for them. When I was young my father always asked me 3 I would be in the future. Sometimes I found 4 very hard to give a certain reply,"I want to be a doctor.""I want to be a teacher." and" I'd like to be a scientist!" Many of these answers are perhaps very childish and ridiculous (幼稚而可笑的). But I never think they are 5 . How time flies! Who is able to give a certain statement to his future? I know 6 that those high buildings are based on solid foundation (坚实的基础). 7 a student, I should have a reasonable aim, and study hard. My goal is to 8 the best university for further study after middle school. I know it's hard work, and I'll come across many difficulties and frustrations. But no matter what they are, I'll keep working on it and never give up. Even if my 9 won't come true, I have no regrets (遗憾) for what I have done, 10 I have worked hard at my life. | ||||
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