如题所述
第1个回答 2022-08-26
=【569+672×(426+2)】÷(672×426+1913)
=(569+672×426+672×2)÷(672×426+1913)
=(569+672×426+1344)÷(672×426+1913)
=(672×426+1913)÷(672×426+1913)
=1
=(569+672×426+672×2)÷(672×426+1913)
=(569+672×426+1344)÷(672×426+1913)
=(672×426+1913)÷(672×426+1913)
=1