精品文档---下载后可任意编辑- = - = + = + =56 -45 =- = + = + = + 2 = 1 - = 29 +59 = 27 +57 = 58 +18 = 56 -16 = 710 -110 =79 -29 = 15 +35 = 1112 -912 = 1-35 = 47 -17 =78 -38 = 45 +35 = 35 -35 = 58 +13 = 12 +15 =34 +17 = 14 +38 = 47 -16 = 15 +18 = 78 -56 =29 +12 = 67 -23 = 310 +14 = 37 +19 = 13 -15 =16 +14 = 57 -15 = 7-57 = 15 +38 = 1415 -13 =34 +56 = 14 - 15 = 37 + 47 = 34 + 54 = 78 - 14 =59 - 29 =1+ 37 = 15 - 16 = 415 + 815 =5-1213 =+= += -= 5-= 58 + 18 =+= -= -= 5- 14 = 1--45 =+= += 2 += 34 -0
25= 73 +23 = += += += 13 +14 = 15 -16 = 0
74+25 2 15−12 = 2−1 34 =5 34 +7= 0
375+1 58=-= += 1-= += += 12+ 13= 13−14= 13+ 15= 316 + 12=1−57=35−15= 59−19= 710 − 310 = 23+ 19=+ = 29+ 39= 812 − 512 =1−56= 12+ 13= 78−28=4+ 67= 38−14= 45 + 15= 910 −12= 23+ 14 = 1-= -= + = 25 -14 = 12 - 14 =710 + 15 = 1 - 34 = 12 + 56