????????

????????????е???仯?????????Щ??С?Χ??????С??????С?????СС???Χ??????????????м????飬????????????Σ?????????????????????????????????仯γɡ???????仯??еκ?????顣???????λ??? ?ε?????Щ??? ?????????λо??????????????С????顣?(???)?????????????г????????г?????Щ?????п???????????г???г????????????????ег??.?????????г?г???????????...

?????ж????????Щ???
?а????磬???????д?????γ?а?????????????????????????к?????????????Я???????????????????и???
???б???????????????????????????в?л??????????
???????????

       ???????????÷??????????λ??λ???????????
   ?????????????跢??????????в?????????????????

??????????????????????
1 ??
?????ι??????????????????????????γ??
2 ???
?????λ????λ?????????????80%???
3 ???
???????????е??????????γɡ
4 ???
?????????????????????...

??
??
    1???????????д?????????
2??????????????λй???????д??????
3????????????
4???β???д??????
5??????β??????
6鲡г??????????β?Щ??????
7???С????????????
8???????????????
?
緽??????????緽?裬?????л?????磬??Ч??
??
?嵭???????????????????????????????
?????????á
?1
  ????
  ÷???...

?м??????????????????γ?
 
?????緽???????????裬?????л?????磬??Ч????
    ?????
       ?嵭???????????????????????????????????Щ?

 ??????????????γ?ò??лΣ????  
    ??????λ?????С?????????????????ò?????Χ???

???????????÷?,????????λ??λ??...