̨ǰһһʲô˼

ǰһ˼ǣһԺһ̨ȥһŲ̫ôΪһ˵׼һڱ򷽴̨ϻʣ¼...


һ˵ǰһ

ԡǰһָһԵһǿ˵ǰһģһ㲻ǰһݵһһ˵ǰǰʮȡ


˲ǰһָһ

ʦ ˲ǰһָȷ˲м۵ǰһաӦָȷзЧ˲м֮ա Ͷί...


ǰһݹѧʲô?

ǰ˾ҵ˾ѧʵõһ£˵һ仰ǣȽٽ顣˲ͻǷdz飬Էﲻ...


HPVǰһͬ

DzȥģΪǰһͬ2Ӱû侫Ħ̼ᵼ¹٣Ӱ...


ǰһλʵ˭

ǵһλʵǹ¾ޡ؜ڣʵۣ峯ʮһλʵۡǻɴȰ̫Ȱ...


ǰһܴ

ǰһָڽǰһϣһ˶ָͨȡڴܵ¼ƣ͡ʼӿӦӰ...


...һ20λ,ÿһŶǰһŶ1λ...

(1)ҳλ֮Ĺϵ:һ20,21,22,23,ɵùm=2n+18;ͬҵ(2)Ĺ,m=3n+17,m=4n+16.


Ϣʱǰһʲôʱ?

һ ٱ Ӧǵڶιҵĵʱ?ڵڶ,ιҵͬʱ. һ,ڶιҵͬʱһ.Ҳ ˵ Ŀǰδȫ Ϣʱ...


ȸŴ(ָŮǰһ˵ĻϢŴ...

һŴѧ˵ ǡʵң˵ ڴʱ Ѿ ׵αѧ ûд׵ ...