问题
填空题
次黄嘌呤核苷酸在脱氢酶作用下可转变为（），后者在鸟嘌呤核苷酸合成酶作用下和（）反应形成鸟嘌呤核苷酸。
答案
参考答案：黄嘌呤核苷酸、谷氨酰胺或氨
搜题请搜索小程序“爱下问搜题”
次黄嘌呤核苷酸在脱氢酶作用下可转变为（），后者在鸟嘌呤核苷酸合成酶作用下和（）反应形成鸟嘌呤核苷酸。
参考答案：黄嘌呤核苷酸、谷氨酰胺或氨
| 补全对话。 | |
| A reporter is asking a student some questions. | |
| |
| A: Excuse me, may I ask you some questions? B: Sure. A: When you talk about the Internet, 1 B: Er, many things. For example, the music, the films, the computer games and so on. A: __2 _ B: No, I don't have much time. A: Would you like to tell me what you will do if you go online? B: _3 I like playing computer games, you know. A: Do you think it is good for children to go into net bars? B: 4 _ A: Why? B: Because when we do useful things, it is good. __5 _ A: Thank you for your answers. B: You are welcome. |