正常人粪便细菌，叙述错误的是（）

A.细菌约占粪便干重的1／3

B.成人粪便中主要的菌群是大肠埃希菌、肠球菌和厌氧菌，约占80％

C.粪便中球菌和杆菌的比例大约为10：1

D.过路菌不超过10％

E.长期使用广谱抗生素患者，引起革兰阴性杆菌数量严重减少甚至消失

用括号中所给单词的适当形式填空。

1. Betty is as _________as I am. (slim)

2. Amy is ________ swimmer of the six students.(fast)

3. I feel ________ uncomfortable when they talk to me. (real)

4. I often spend a lot of time ________ playing softball after class. (practice)

5. In a ________ school, boys and girls have lessons together. (mix)

6. There is ________ air pollution in the country than in the city. (little)

7. Simon has _______ beautiful clips than Kitty. (many)

8. There are many places of ________ in the city of Suzhou. (interesting)

9. Daniel didn't hurt ________ in the accident. (he)

10. After taking the medicine, she felt even ________ (bad).