检查菌体的不同结构成分及抗原与特异性抗体结合形成复合物时须用（）
A.普通显微镜
B.荧光显微镜
C.暗视野显微镜
D.倒置显微镜
E.照相显微镜
参考答案：B
解析：普通显微镜最大分辨率为0.2Pm，最大放大倍数为1000倍，常用来观察细菌的大小、形态及细菌的荚膜、芽孢和鞭毛等。暗视野显微镜用来观察不染色活菌体的运动。倒置显微镜主要应用于生物学、医学等领域中的组织培养、细胞离体培养、浮游生物、环境保护、食品检验等显微观察。照像显微镜用于将具有研究特征的组织拍摄下来，利于长时间保存和研究。而荧光显微镜可以检查已被荧光素着色的菌体的不同结构成分及抗原与特异性抗体结合形成复合物。
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| Summer is coming. Junior 3 students are going to say 1 to each other. 2 , each student would buy a big beautiful notebook (笔记本) and ask their classmates 3 in it. But this year, things 4 a bit difficult. Some Junior 3 students 5 floppy disks (软盘) instead of notebooks. 6 the help of a computer, students write, draw or even make flashes (动画) for each other. "I am not 7 at Chinese. I don't have 8 beautiful words to say to show how 9 I love my friends," said Zhang Shoukun, 16, girl. "Now I can make short flashes for 10 . It's a really cool thing to do!" In her flash, Zhang made her classmates' 11 show one by one, with beautiful music. 12 some students still like notebooks better. "Words in computer are 13 . I like to keep my classmates' handwriting (书法)." Said Tong Jie, 16, girl. "I have a good friend. His handwriting is just like 14 . Every time I saw his handwriting in the notebook. I would 15 him!" Which way you choose to say goodbye to your dear classmates? |
| ( ) 1. A. hello ( ) 2. A. In the past ( ) 3. A. write ( ) 4. A. am ( ) 5. A. use ( ) 6. A. For ( ) 7. A. weak ( ) 8. A. any ( ) 9. A. deeply ( )10.A. him ( )11.A. books ( )12.A. But ( )13.A. hot ( )14.A. a girl ( )15.A. talk with | B. Goodbye B. In the day B. to write B. is B. play B. In B. good B. some B. deep B. it B. pictures B. And B. cold B. girls B. point at | C. sorry C. In the future C. writing C. are C. copy C. With C. well C. no C. deeper C. them C. desks C. Or C. warm C. a girl's C. think of |