问题
单项选择题
慢性心脏病患者心力衰竭的最常见诱因是（）
A.劳累
B.肺部感染
C.电解质紊乱
D.妊娠
E.心律失常
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
慢性心脏病患者心力衰竭的最常见诱因是（）
A.劳累
B.肺部感染
C.电解质紊乱
D.妊娠
E.心律失常
参考答案：B
| 完形填空。 | ||||
| Mr.Smith is a good teacher. He is 1 . There 2 fifty students in 3 class. Mr. Green and his students are 4 friends, too. Now some of the students 5 on the playground. Bill and Mike 6 . Tom and John are jumping. Mary and Lucy are 7 a kite. 8 girls are playing 9 . Mr.Smith is playing 10 hem. | ||||
|