ƺʹʲô^(q)e
ƾǴǴW(xu)ƵĺQ(yn)f,һN\y(tng)f,ƱһNW(xu)vӴ҇Ŀǰr,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)njûȫеȽĻA(ch)B(yng)һдW(xu)֪RһI(y)g(sh)ͼܵ˲ţ֪RvԉÞÞ鱾(j)ЇꑽwĿǰ֞׃ȽеȽߵȽƽȫеȽA(ch)M(jn)еıȱƽ̵ČI(y)ͬƽоһ҇ߵȽwϵеҪMɲ
2+3
3+2һ؞ƴһ؞ƣַQcW(xu)ƽ҇ߵȽҪMɲƸһӣdzЮI(y)ϴW(xu)()ݏꮅI(y)ȡA͇O(jin)ҳJ(rn)ͨߵȌW(xu)Уy(tng)еĴW(xu)đ{
2+3һ؞ƌƣcƌͬ;W(xu)ģʽǰ2AΣӋߵȌW(xu)УW(xu)3ӋͨߵȌW(xu)УƌW(xu)