– What can you do? - .
A:I can play football
B:I like fireworks
已知|x﹣2|+(y+1)2=0.
(1)求x、y的值;
(2)求﹣x3+y4的值.
按从小到大的顺序,把下面各数排列起来。
33 46 64 98 89 70 19
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