a,籣aU߽~
S籣ԽԽܵ˂PעNԭaU籣ԽԽ硰˽籣Bm(x)M5I籣ͣ2겻aU籣aa˱æ籣aUaa!
籣aUҪ֞ͣ
1I(y)ԭɆTδU{籣ҪI(y)aU;
2˲ĴnˆT`͘I(y)ˆTaU;ȻngIȡʧI(y)UIȡʧI(y)UgaU;ڸձO(jin)gaU;M뱱ǰؑM뱱ǰaU;DZБڏr(nng)I(y)D(zhun)r(nng)I(y)r(nng)D(zhun)֮ǰaU;
3T{(dio)ӣ籣PϵD(zhun)Ʋ籣ДaU;
4Tԇ_ʼU{籣籣ԓǏԇ_ʼU{ԇaUҪI(y)aU;
5؆ToՙnoλaUҴ˾MaU;