玲玲的左边有8人,右边有4人,从左边移几人到玲玲的右边,玲玲就站在正中间?5e7},p2z0{3`1?6i
算式:提示,i5M8T(E(w/c8H'A)m-w/Y'~*O0\5e7},p2z0{3`1?6i
答:移7y/?(L6t2j8}0p2c人。5e7},p2z0{3`1?6i