情景反应。

1. — Sorry, I don't know.

    — _____.

A. Thank you.

B. Why not know　

C. Thank you all the same

D. Not at all

2. — Let's have sports.

    — _____.

A. All right

B. That's right

C. That's all right

D. You're right

3. — May I speak to Mr. Li?

    — _____. 　　

A. Yes, I am. 　　

B. No, you may not 　

C. Sorry, he isn't here　

D. Sure, he is out

4. — Who's that?

    — _____. 　

A. This is Tom

B. It's Lily

C. That's Kate

D. It's me

5. — Yes, it's mine.

    — _____ 　

A. Give you.

B. Here you are.　

C. Where is it?

D. Whose is it?

6. — Do you speak Chinese?

    — _____.

A. Yes, only a little 　　

B. Yes, only a few

C. No, I can't 　　　

D. No, you don't

7. — _____?

    — She's an office worker.

A. What are you 　　

B. What does she do

C. How do you do 　　

D. How is she

8. — _____?

    — Of course, here you are.

A. May I have a look

B. Would you like to have a picnic

C. May I take your order

D. Could you do me for a favor

9. — Can I help you?

    — _____.

A. I need a few things

B. I think so

C. I'm looking for a shirt for my son

D. How much do you want for the watch

10. — Oh, sorry. Here is your change.

      — _____.

A. It doesn't matter

B. You're welcome

C. It's very kind of you

D. Thanks a lot

火灾自动报警系统的探测器底座的连接导线，应留有不小于（）的余量，且在其端部应有明显标志。

A、50mm

B、100mm

C、120mm

D、150mm