分子的价电子吸收光的能量后，由低能量的基态转变为高能量的激发_爱下问搜题

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问题单项选择题

分子的价电子吸收光的能量后，由低能量的基态转变为高能量的激发态的过程称为

A．激发

B．跃迁

C．突跃

D．红移

E．蓝移

答案

参考答案：B

补全对话，情景问答

情景交际。从（B）栏中找出与（A）栏相对应的答语。

( )1. Who's the boy?
( )2. What's the girl's name?
( )3. How old are you?
( )4. Are there any apples on the table?
( )5. Where is the meat?
( )6. Nice to meet you.
( )7. Have you got any juice?
( )8. How many books have you got?
( )9. Are you a worker or a teacher?
( )10. Thank you.

A. That's all right.
B. Yes, there are.
C. I'm thirteen.
D. Her name's Gina.
E. It's in the fridge.
F. I've got thirty.
G. I'm a worker.
H. No, I haven't
I. Nice to meet you, too.
J. He's my brother.

填空题

英译中（Translate）：carbon reaction（）