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don know u say wat
題目.....真的不明白
:onion03:
thanks
dunno at all
1,2,4,8,16,32,64,128,256,489
ya dont understand the question as well...
duuno wht u say:019: :019:
dont understand
1,2,4,8,16,32,64,128,256,489
看看,,,
这个很难。。。。。。题目很难明白
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