庆大霉素无效的感染是
A．绿脓杆菌感染
B．结核性脑膜炎
C．大肠杆菌引起的尿路感染
D．G－杆菌所致的败血症
E．肠球菌所致的心内膜炎
参考答案：B
x2+（ ）-8x2-1=2x2+7x-3。
用适当的词填空，补全对话。
1. A: Do you 1. to go to a movie?
B: Yes, I 2. .
A: What 3. of movies do you 4. ?
B: I like action movies 5. comedies. What kind of movies do you like?
A: I like comedies 6. I don't like action movies.
2. A: Does 7. 8. to go to a movies?
B: Yes, he 9. .
A: 10. 11. of movies does he like?
B: He 12. action movies but he 13. 14. romances.
