文档介绍：31-29= 41-39= 81-79= 51-48= 31-28= 41-38= 81-78= 33-26= 53-4785-77= 45-38= 32-25= 72-67= 21-14= 31-24= 41-34= 81-74= 31-2571-65= 41-35= 82-74= 42-38= 63-58= 33-25= 54-46= 94-86= 72-6441-29= 61-39= 81-49= 42-24= 42-28= 63-34= 63-39= 84-46= 84-4865-37= 48-23= 47-22= 68-35= 67-35= 89-44= 89-45= 67-34= 62-3542-27= 66-38= 67-39= 87-48= 83-45= 83-47= 51-19= 71-59= 91-3941-28=52-16=52-15=43-17=94-46=70-40=71-58=71-26=73-58=73-56=54-28=90-70=91-38=91-36=94-36=94-46=75-17=80-45=51-14=51-24=95-17=54-18=92-26=70-35=71-51=71-14=76-58=75-28=90-40=40-15=91-39=91-44=97-38=95-37=80-30=50-45=51-15=51-23=58-19=53-25=20-10=30-15=71-55=71-13=72-54=73-28=70-30=50-25=91-3591-2392-3894-4690-6080-4015+15=17+66=37+35=29+59=67+24=26+37=44+47=48+25=67+27=49+42=17+48=37+54=75+28=36+26=22+59=25+47=28+47=24+68=56+34=45+47=38+45=27+88=38+54=67+23=65+27=13+48=55+36=46+18=48+32=28+65=26+48=16+85=58+36=69+31=55+38=26+47=    52-1765+27=    98-2578+18=    65-3834+57=    83-1840+30=    74-4793-27=62-14=72-15=52-17=71-59=83-28=55-17=54-36=71-65=73-46=62-28=63-28=83-48=59-29=74-28=41-27=61-46=41-35=65-18=74-26=82-47=73-55=63-19=52-18=77-7=55-26=82-74=63-25=93-47=54-16=92-86=78-59=73-48=63-47=83-66=42-38=82-56=83-16=95-48=62-58=45-29=41-38=56-17=64-16=63-58=94-66=77-69=85-27=72-24=86-49=75-68=75-47=92-37=33-25=83-77=75-28=63-36=54-36=37-19=98-98=94-67=94-36=54-46=44-28=65-47=73-47=74-28=64-39=87