问题
单项选择题
支气管哮喘发作时的呼吸型态是（）
A.潮式呼吸
B.吸气性呼吸困难
C.呼气性呼吸困难
D.混合型呼吸困难
E.间停呼吸
答案
参考答案：C
解析：支气管哮喘发作时的呼吸型态是呼气性呼吸困难。
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支气管哮喘发作时的呼吸型态是（）
A.潮式呼吸
B.吸气性呼吸困难
C.呼气性呼吸困难
D.混合型呼吸困难
E.间停呼吸
参考答案：C
解析：支气管哮喘发作时的呼吸型态是呼气性呼吸困难。
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| Not long ago, I made up my mind to read a lot of books to get more knowledge.So I went to the library and 1 happily with several books.But after a few days ,I felt impatient (没耐心).The 2 of finishing all of them seemed impossible,because I always found it 3 to calm down to read a whole book. I didn't know what to do with it.Then 4 one day I thought of "Why not make reading fun?". It gave me 5 again.Reading is a journey of spirit.Every time we read a book,we are actually talking 6 the writer. I tried to put all my effort into his or her books , 7 I could feel all of his or her happiness and suffering. Now books have become a part of my life. See?Attitude (态度) can make a great 8 .Someone once said, "Even though the situation is bad, people still have one freedom to 9 their attitude."So,don't complain about study or work. It helps 10 . Try to see things from a different way.Believe me,this will change the situation and help you a lot. | |||
| ( )1. A. sang ( )2. A. way ( )3. A. hard ( )4. A. sadly ( )5. A. advice ( )6. A. with ( )7. A. because ( )8. A. decision ( )9. A. announce ( )10. A. nothing | B. jumped B. habit B. interesting B. quickly B. hope B. about B. thought B. difference B. choose B. anything | C. returned C. suggestion C. happy C. suddenly C. time C. of C. but C. discussion C. show C. everything | D. danced D. idea D. easy D. hardly D. knowledge D. at D. so D. promise D. hide D. something |
2C（g），以B的物质的量浓度表示的反应速度υ正、υ逆与时间的关系图如所示，则图中阴影部分的面积可表示