问题
填空题 案例分析题
下图是某核苷酸与核苷酸链示意图，据图回答问题：
右图为一条核苷酸链示意图，据图回答：①图中所示2、3的名称分别是（），（）②人体细胞中遗传物质由（）条图示的核苷酸链构成。③此结构中与另一种核酸相比较，其特有的碱基中文名称是（）
答案
参考答案：
①脱氧核糖 胞嘧啶
② 2
③胸腺嘧啶
搜题请搜索小程序“爱下问搜题”
下图是某核苷酸与核苷酸链示意图，据图回答问题：
右图为一条核苷酸链示意图，据图回答：①图中所示2、3的名称分别是（），（）②人体细胞中遗传物质由（）条图示的核苷酸链构成。③此结构中与另一种核酸相比较，其特有的碱基中文名称是（）
参考答案：
①脱氧核糖 胞嘧啶
② 2
③胸腺嘧啶
| 完形填空。 | |||
| We __1__ English, not learning about English. A student can __2__ all about English, but he __3__ not be able to speak English. There is a __4__ between "learning English" and "learning about English". If you __5__ to learn it well, please __6__ the following things. __7__ , learn the expressions (表达) by heart , learn the __8__ sentence, not single words. __9__ don't __10__ about mistakes. It is important __11__ a good habit from the very first lesson. Just try to say __12__ you want to say and don't care __13__ people laugh at you. Keep on __14__ and you'll make __15__ mistakes. | |||
| ( ) 1. A. learning ( ) 2. A. know ( ) 3. A. must ( ) 4. A. different ( ) 5. A. think ( ) 6. A. remember ( ) 7. A. In the end ( ) 8. A. all ( ) 9. A. at any time ( ) 10. A. carry ( ) 11. A. to search ( ) 12. A. where ( ) 13. A. that ( ) 14. A. standing ( ) 15. A. less and less | B. were learning B. tell B. may B differences B. want B. understand B. Most of all B. this B. all the time B. worry B. to repeat B. why B. if B. trying B. more or less | C. are learning C. say C. dare C difference C. try C. read C. First of all C. both C. at the same time C. hurry C. to start C. whom C. how C. putting C. fewer and fewer | D. learn D. sing D. can D. differently D. can D. write D. write D. whole D. at times D. stop D. to develop D. what D. what D. teaching D. write |