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【单选题】
若函数 唯一的一个零点同时在区间 、 、 、 内，那 么下列命题中正确的是 （ ）A.
函数 在区间 内有零点
B.
函数 在区间 或 内有零点
C.
函数 在区间 内无零点，唯一的一个零点必然在区间
D.
函数 在区间 内无零点
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皮皮学刷刷变学霸
举一反三
【简答题】以下关于套利行为描述正确的有（ ）。
【简答题】Exchanging name cards F: Welcome to HDP. Let me give you my (2)______ card. M: And here is mine. F: Thank you for (3)______ the time to visit us. I know you have a busy itinerary. M: It's pleasure, Ms...
【单选题】A:I'd like to thank you for my enjoyable stay in the hotel. B:It's been our pleasure to have you with us, Mrs.Smith. Q:What can we conclude from this conversation? ( )
A.
M rs.Smith had a pleasant stay with the man.
B.
M rs.Smith has stayed in this hotel for a long time.
C.
M rs.Smith has had a good time in this hotel.
D.
The man is glad to see Mrs.Smith go.
【简答题】以下关于跟踪误差描述正确的是（ ）。
【简答题】年纪(“나 이 ”的敬语)(名)
【单选题】Speaker A: Well, we want to thank you for coming to the studio today, Kiki. It's nice to meet you. Speaker B: Oh, thank you. ______
A.
You're welcome.
B.
I'm really pleased.
C.
How happy I am!
D.
It's my pleasure.
【单选题】- -Can you tell me how to improve myself? 一There' 8 no 8ecret at all. The only thing for you to do is to practice more. You will succeed. ---- _____ 一It's a pleasure. Come on. I' m on your side.
A.
Really?
B.
It won't work.
C.
Thank you for your encouragement.
D.
I am a loser and won' t succeed.
【多选题】供选择的答案:
A.
Ok, there is a green button.
B.
What can I do for you?
C.
It's my pleasure.
D.
10 yuan each.
E.
What time is the last subway? 请选择上述正确答案填空 A: Excuse me, sir. B: Yes? ____1_____ A: I want to go to the train station, but I don't know how to get the ticket there from the machine. B: ____2_____ Just press it. A: How much is the ticket? B: ___3_____ A: All right. By the way,____4______ B: At 12:00p.m. A: Ok. Got it. Thanks for your help. B: ____10_______ A: Goodbye. B: Bye!
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