书架上有36本书,拿走—些,书架上还有9本书,拿走了几本?.g'X:B)|+G6T/p*c8R5]9~0`(`
算式:提示6}3j+l2s.g'X:B)|+G6T/p*c8R5]9~0`(`
答:拿走了(g'g(H-[,L)u'i'T3o)e/c本。.g'X:B)|+G6T/p*c8R5]9~0`(`