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【简答题】
圆x 2 +y 2 ﹣2x﹣6y+9=0关于直线2x+y+5=0对称的圆的方程是 (    ).
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参考答案:
举一反三
【单选题】听力原文:M: I wonder if I could borrow your dictionary, please? W: You certainly could if I had one, but I gave my old one to my brother when he went away to school, and I haven't bought a new one yet. Q:...
A.
She has none at present.
B.
She has bought a new one.
C.
She has only an old one.
D.
Her brother has given her one.
【单选题】在酒类商品防伪系统中,一般采用哪种频段的 RFID系统?
A.
低频
B.
高频
C.
超高频
D.
微波
【单选题】— I wonder if I could use your mobile phone. — ____.
A.
I wonder how
B.
I don't wonder
C.
Sorry, it's out of order
D.
No wonder, here it is
【简答题】quiz 4
【单选题】--- I wonder if I could possibly use your car
A.
34. --- I wonder if I could possibly use your car fortonight? ---______. I'm not using it anyhow.  ( 全国 1) A. Sure, go head     
B.
I don'tknow       
C.
Yes,indeed        
D.
I don't care
【简答题】quiz 4
【单选题】在酒类商品防伪系统中,___________是最重要的部分,其性能决定着防伪系统的作用。
A.
阅读器
B.
中间件
C.
电子标签
D.
天线
【单选题】听力原文:M: I wonder if I could borrow your calculator, please? W: You certainly could if I had one, but I gave my old one to my sister when she entered high school, and I have not bought a new one yet. Q...
A.
She has bought a new one.
B.
She has none at present.
C.
She has only an old one.
D.
Her sister has given her one.
【单选题】听力原文:M: I wonder if I could borrow your calculator, please? W: You certainly could if I had one, but I gave my old one to my sister when she entered high school, and I have not bought a new one yet. Q...
A.
She has bought a new one.
B.
She has none at present.
C.
She has only an old one.
D.
Her sister has given her one.
【简答题】Please upload the picture of you answers to the quiz. quiz for unit1-4.doc 1 Quiz.mp4
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