a(b),籣a(b)U߽~
S籣ԽԽܵ˂P(gun)עNԭa(b)U籣ԽԽ࣬硰˽籣Bm(x)M5I籣ͣ2겻a(b)U籣a(b)a(b)˱æ籣a(b)Ua(b)a(b)!
籣a(b)UҪ֞ͣ
1I(y)ԭɆTδU{籣ҪI(y)a(b)U;
2˲ĴnˆT`͘I(y)ˆTa(b)U;(dng)ȻngI(lng)ȡʧI(y)UI(lng)ȡʧI(y)Uga(b)U;ڸġձO(jin)ga(b)U;M(jn)뱱ǰؑM(jn)뱱ǰa(b)U;DZБڏr(nng)I(y)D(zhun)r(nng)I(y)r(nng)D(zhun)֮ǰa(b)U;
3T{(dio)籣P(gun)ϵD(zhun)Ʋ籣Дa(b)U;
4Tԇ_ʼU{籣籣(yng)ԓǏԇ_ʼU{ԇa(b)UҪI(y)a(b)U;
5؆Toՙnoλa(b)UҴ˾M(jn)a(b)U;