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1、, 876 ,1- 2-,1,15 9 = 6 16 8 = 8 14 7 = 7 14 6 = 8,18 6 = 12 17 4 = 13 16 4 = 12 15 1 = 14, . .,2,11 9 =,12 9 =,13 9 =,14 9 =,15 9 =,16 9 =,17 9 =,18 9 =, ,2,3,4,5,6,7,8,9, 9 1,3,11 8 =,12 8 =,13 8 =,14 8 =,15 8 =,16 8 =,17 8 =, ,3,4,5,6,7,8,9, 8 2,4,11 7 =,12 7 =,13 7 =,14 7 =,15 7 =,16 7 =, ,4,5,6
2、,7,8,9, 7 3,5,11 6 =,12 6 =,13 6 =,14 6 =,15 6 =, ,5,6,7,8,9, 6 4,6,11 8 =,13 7 =,13 6 =,18 9 =,15 8 =,17 9 =,11 7 =,14 6 =,3,6,7,9,7,8,4,8,15 9 =,12 7 =,13 9 =,15 7 =,11 6 =,16 9 =,17 8 =,14 8 =,6,5,4,8,5,7,9,6,7, 9 1, , 8 2, 7 3, 6 4,8,5,8,7,9, , 2 3 ( ) .,10,11, !,2,5,8,1,3,9,4,6,10,7,12,5,7,8,4,3,6,9,2,13,5,7,9,6,4,8,14,5,9,8,16,7,14,10,15,11,13,15,绿色圃中小学教育网, ,5,3,7,8,7,9,12,9,8,17,5,6,16,1. ,:(1) ,(2) :,17,:,2.,17,9,8,15,6,9,16,9,8,: :,18,4.:,3.,4,4,5,5,6,6, :,19, :, 15 ,15,7,8,15,6,9, 7 , 6 ,20, , 7 15 11 ,21,