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(-119/120)÷(-120/121) =119/120*121/120 =(120-1)*(120+1)/120*120 =(120^2-1)/120^2 =1-1/14400 =14399/14400<1 所以-119/120>-120/121 要採納最先回答的正確答案,是對答題者勞動的尊重.祝進步!
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