题目内容

二极管存在最高工作频率是因为PN结有电容效应。

A. 对
B. 错

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when you meet someone for the first time, you can say( )

A. It's nice to meet you
B. I'm glad to see you again
C. It's pleased to see you
D. I'm good to meet you

How's it going?

A. I'm doing good
B. It's going well
C. It's ok
D. not much

翻译下面四个句子1. 见到你很高兴。2. 你好！这是我的名片。3. 好久不见，你最近好吗？4. 请叫我Nancy。

Lin: Hi! Are you new here?John: Yes. I'm an （1） student. This is my first year here.Lin: My name is Lin, a third-year student.John: How do you do, Lin? I'm John Thomson from England.Lin: How do you do? It's a great （2） to meet you, John. I'll go to England to further my studyfor a （3）'s degree.John: I'm here for my Chinese (4). Perhaps we could help each other.Lin: Yeah, John. If you need any help, feel free to tell me.John: Really? Thank you.Lin: Are you (5)?John: Yes, I am.Lin: My e-mail address is lin@campus.com.John: Mine is john@england.net. Let's keep in touch.Lin: OK. Bye for now, John.John: Bye-bye, Lin. It's nice to have met you.