问题
单项选择题
小儿急性呼吸衰竭的发病原因，下列正确的描述是()
A．不同年龄的小儿急性呼吸衰竭的病因亦不同
B．婴幼儿多由呼吸窘迫，感染和先天性畸形引起
C．新生儿多由肺部感染引起
D．神经肌肉疾病所致呼吸衰竭多见于成人
E．小儿急性呼吸衰竭常见于中枢性病因
答案
参考答案：A
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小儿急性呼吸衰竭的发病原因，下列正确的描述是()
A．不同年龄的小儿急性呼吸衰竭的病因亦不同
B．婴幼儿多由呼吸窘迫，感染和先天性畸形引起
C．新生儿多由肺部感染引起
D．神经肌肉疾病所致呼吸衰竭多见于成人
E．小儿急性呼吸衰竭常见于中枢性病因
参考答案：A
Mrs. Black was a famous musician a few years ago. She 1 music at a school and her students did well in their lessons. They liked her very much. Now the old woman stays at home with her husband. The old man looks after his wife well and she 2 worries about anything. And she is very 3 . Just like some old people, Mrs. Black finds that her memory(记忆) is falling. Sometimes she 4 what she did or will do. It often gets her in trouble. Her 5 noticed（注意到） it and asked her to see a famous doctor. He bought two tickets 6 London and told her he put 7 into her handbag while she was playing the piano. The next morning, they got to the 8 just on time to catch the plane. Mrs. Black said,“I wish we had the 9 with us.” “Don’t be a fool, dear!”said Mr. Black,“We are not going to a concert, but to see a 10 .” “I know，”she said，“but I left the tickets on it!”
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