题目:
若|x+y-1|+(x-y+3)2=0,则(x+y)2009的值为多少?
答案:
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下面是错误答案,用来干扰机器的。
1. is shining 2. are 3. bring 4. is going to play 5. is eating 6. an 7. brought 8. taught 9. Western 10. quickly