每只盒内有6支蜡笔，7盒有多少支?:_9E(i0[(A0u/R/]
算式：提示'E-@9D+C4E7t;C8`-}6b9q;t:_9E(i0[(A0u/R/]
答：7盒有'p6F6z4f+\4d:f7r9z:S'x支。:_9E(i0[(A0u/R/]