问题
选择题
若A（a，6），B（2，a），C（0，2）三点在同一条直线上，则a的值为（ ）
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答案
答案：A
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若A（a，6），B（2，a），C（0，2）三点在同一条直线上，则a的值为（ ）
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答案：A
| 补全对话。 | |
| A: It's my brother's birthday soon. 1. B: How about a sweater? A: No, 2. I want to give him a surprise. B: Let me see. 3. A: No way! It's too expensive. I can't pay for it! B: Oh, that's really a problem. I get it! Your brother likes listening to pop music. 4. A: That sounds like a good idea. I will buy him a CD of Jay Chou. He is his fan. 5. B: OK, let's go.
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