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第1题

I’m Jack green. Here is my business card. A、No, thanks. B、It’s very kind of you. C、Thank you. Here is mine D、You’re
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第2题

直线√3x-y+m=0与圆x2+y2-2x-3=0相切，求实数m.的值
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第3题

Hi! Are you new here? A、Yes, I’m a freshman. B、No, I’m old. C、Hi, I’m Lu Yang. D、It’s not new.
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第4题

How’s his father doing? A、He is very kind B、No, he’s not here C、Yes, he’s fine. D、He is very well.
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