ƺʹʲô^(q)e
ƾǴǴW(xu)Ƶĺ(jin)Q(yn)f(shu),һN\y(tng)f(shu),ƱһNW(xu)vӴ҇(gu)Ŀǰr,Ҫ֞ߵȌW(xu)У(ߌ)ߵI(y)g(sh)()ɷN,njƽӴ
ƺʹW(xu)v^(q)e
ƺʹW(xu)vһӵW(xu)ƽҪЃɷNʽ(ߵI(y)W(xu)Ժ)ߌ(ߵȌƌW(xu)У)ͨߵȌW(xu)УxƌI(y)ČW(xu)I(y)@ôW(xu)ƌW(xu)v
W(xu)B(yng)g(sh)ߵ˲ŞҪĿ(bio)W(xu)ƵĿ(bio)nj(sh)ûȫеȽĻA(ch)B(yng)һдW(xu)֪R(sh)һI(y)g(sh)ͼܵ˲֪R(sh)vԉÞ(sh)Þ鱾(j)Ї(gu)ꑽwĿǰ֞׃ȽеȽߵȽƽȫеȽA(ch)M(jn)еıȱƽ̵ČI(y)ͬƽоһ҇(gu)ߵȽwϵеҪMɲ
2+3
3+2һ؞ƴһ؞ַQc(din)W(xu)ƽ҇(gu)ߵȽҪMɲƸһӣdzЮI(y)ϴW(xu)()ݏꮅI(y)ȡA͇(gu)O(jin)(gu)ҳJ(rn)ͨߵȌW(xu)Уy(tng)еĴW(xu)đ{
2+3һ؞ƌƣcƌͬ;W(xu)ģʽǰ2AΣӋ(j)ߵȌW(xu)УW(xu)3Ӌ(j)ͨߵȌW(xu)УƌW(xu)