ת??֮?䣬ѧϰ???ڷ??Ѿ?ʮһ???ˡ?ʮһ??ǰ???ڿ???????????ʦ???ε??龰????????Ŀ?????ⵯָƬ?̣??ҵ????ķ????˶?ô???ı仯ѽ??ѧϰ???ڷ??????Ǵӻ????Dz??????ļ???ƣ???????ڱ?????״̬????ġ???????????Ҹ??????ֳ????????ġ???ͥ????????????????ϲ???ǣ??Ҷ??????Լ??????????Լ???????????ϰ?ߡ?˼άģʽ?????????Լ??????????ı??ԣ??????ܹ????????̴????????䳤????
    
    ??С?????????ͺ????棬??רע????Ͷ?룬????????????û?????ɻ????????????Ҳ???IJ??¡?Ϊ?ˣ??ҵĹ??????????˷??ġ??ӵ?֪?ൽ?????????ݣ???û??????˵????Ŭ?????????????????????Ͽ?????ͬʱ??Ҳ???ò??????ɡ????š????¡??ż??????ǡ??????????????ھΡ??????????????????ɵ????????ֲ??ʣ????????ص??ǽ????ͼ?????ʹ?ࡣ
    
    ?ǵ??ڷ?ʹ???????ˣ??ҵġ?ǿ?ҵļ??еĸ????ġ???ʹ??ÿ????һ?????飬?????Ĵ??????????뾫???????ķ????ޱȣ?????????????????????ڹ??????ԣ???????һ???ŵ㣬?????Լ????????ԣ?ȴ??һ????????ȱ?㡣
   
    һ???˽??ŵ?ʱ?????????ڷ???ϵͳ??????һ??Ƥ?ʴ??ɵ??ɡ????ڿɵ???ˮƽ???ˣ????˲??ã???˵???˵Ľ???ѹ???ܴ?ɵ???ָ????ȥ?ˣ??ܳ???4???????ң???????????????????һ?????????????ڽ????У????Լ????????ɵ??ڷ???ϵͳ?ı仯?Ƿdz?ǿ?ġ????ֶ????Ļ??ۣ??ͻ????ɻ????ļ????????ڷ???Ч??????????Ƥ?ʴ??Ĺ??????ڣ??????????Ļ??ۣ??????˼???ˮƽ???ٽ?????ƽ?⣬???߻????????߹??ܡ?
   
    ?Ӵ??Ұ??ա???ƽ??Ͷ?룬̹Ȼ?ظ???????ԭ??????Լ?????????״̬???????Լ???˼άģʽ???????Լ??ı??ԡ??Լ????ġ??Լ??ļ??塣?????ڷ???ѧϰ?????ҵ??????С????????????Լ????????⿪?ˣ??????Լ??ļ????????ˣ??ҵ????????ˡ?????˵??????ɽ?׸ģ????????ơ??????????Եظе??Լ??ı??Ա??ˡ? 
   
    ?һ??????棬רע??Ͷ?룬׷???????????ҵ?˼άģʽ?ı??ˣ????Ǽ?????ʹ??Զ?????ң??????ܵ???????ȫ?????ɡ????֡? 

    
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