??????????????????????? ??????????????

?????????????????????????????????????????·?????????????Х???·??????????????????4,5?μ??ɡ??????????????С????????????

???????2??С??A,B????????????κ???????A??ж??(????????)B????A??????ɡ?

???????2??С???????100??????????????????????谾??У????????????????飬2????????????????????

?????????????100????B?????????????????A?????????????????????????????????????????(???????100)??

???????????????????????????

???5??????????????????????????????????72???????1000????????100???佫????8000+???

????????????????>У??>????????????????????????佫????????????3??????100,1???????5???佫??100???????

?????????????????????????????????4??42???????????????????????????????16??/?????????????????????60????55?????????????硣

60????55??????????????60???????????7??/????50????6??/???????????32???????????????7??/?????·?36?????·?????8??/????

?????????????>????>????>?·?>????????????????????????????????????70??????????????50????????·?60????????????????????????????????????????????????????

?????????A???????6??A??????B???????(?????????B???μ?????????????????￡????????????A??B???)

????????????????????????A??????1500??????????????

???

???????A???????????A???????????(???????????????????????????????κ???????????)?????????B??

????A??????????????????????

??????????Щ?????????????????????????????ū????????????????

?????????????????в????????????????????????лл??