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【简答题】
PbCl 2 分子的几何构型为 ,中心原子采用 杂化。(需注明等性或不等性) ,
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举一反三
【单选题】The main purpose to call the professionals before making your first visit is to ______.
A.
make an appointment
B.
know more about them
C.
tell them about your problem
D.
find out whether they are reputable
【单选题】听力：What is the woman's purpose in making the phone call
A.
Q: What is the woman's purpose in making the phone call? M: Hello. Yes? W: Hello. Is that the sales department? M: Yes, it is. W: Oh, well, my name's Jane Kingsbury of GPF Limited. Hmm, we need some supplies for our design office. M: Uh, what's sort? W: Well, first of all, we need one complete new drawing board. M: A DO44 or DO45? W: Uh, I don't know. What's the difference? M: Well, the 45 costs 15 pounds more. W: Hmm, so what's the total price then? M: It's 387 pounds. W: Does that include value added tax? M: Oh, I'm not sure, most of the prices do. Yes, I think it does. W: Hmm, what are the boards actually made of? M: Oh, I don't know. I think it's a sort of plastic stuff these days. It's white anyway. W: Hmm, and how long does it take to deliver? M: Oh, I couldn't really say. It depends on how much work we've got and how many other orders there are to send out, you know. W: Ok. Now we also want some drawing pens, ink and rulers and some drawing paper. M: Oh, dear, the girl that takes orders for supplies isn't here this morning, so I can't take those orders for you. I only do the equipment, you see. W: OK. Well, perhaps I'll ring back tomorrow. M: So do you want the drawing board then? W: I'll have to think about it. Thanks very much. I'll let you know. Goodbye. M: Thank you. Goodbye. A.To return some goods.
B.
To apply for a job.
C.
To place an order.
D.
To make a complaint.
【简答题】请大家编程实现“带截图功能的浏览器”,实现后代码粘贴上来。
【简答题】Flash CC可以导入各种文件格式的矢量图形和( )。
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