3()3()3()3=1这道题怎么做

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3()3()3()3=1这道题怎么做3()3()3()3=1这道题怎么做3()3()3()3=1这道题怎么做3加3减3除3=13+3=6-3=3/3=1

3()3()3()3=1这道题怎么做
3()3()3()3=1这道题怎么做

3()3()3()3=1这道题怎么做
3加3减3除3=1
3+3=6-3=3/3=1