1997霧1998ᘧ࿾998怎么算?

2025-06-21 11:46:12
推荐回答(1个)
回答1:

原式=1997/1998*(1998-1000)
=1997-1997000/1998
=1997-998500/999
=1997-999-499/999
=998-499/999
=997又500/999