冀教版小学数学五上 8.1方程 课件(共30张PPT)资料可供全国地区适用。
大致详情:(共30张PPT)天 平20g10g10g10g10g10g10g20g10g10g10g10g10g10g20g怎样使天平处于平衡状态?10g10g10g10g10g10g20g10g10g10g10g10g10g20g10g10g10g20g10g10g10g20g10g10g20g10g10g10g10g10g10g20g20g20g10g10g10g10g10g10g20g20g20g10g10g10g10g10g10g20g20g5g20g...
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