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如何在excel中自动生成一元一次方程试题，小学生做？
=IF(ROUND(RAND(),0),RANDBETWEEN(0,100)&IF(ROUND(RAND(),0),+,-)&IF(RAND()>0.2,,RANDBETWEEN(2,5))&x,IF(RAND()>0.2,,RANDBETWEEN(2,5))&x&...
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