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????????????????????佫????????????Σ??????????????????????????????????????????????????????????????????????????????????????м????????(??????????????)

1. 8С???????????????????????????????(1)????????????????顣?????????????????1;(

2 A 8С?????????????1.2,1???????1С?0.2??????飬8С?????????1.6;1????????1.6

3 B 24С?????????????1.5,10???????1С?0.5??????飬24С?????????12;1????????1.2

4 C 24С??????????????2.0,25???????1С?1?????飬24С?????????24;1????????0.96

5 D 72С??????????????2.0,70???????1С?1?????飬72С?????????72;1??????????1.03

6 E 72С?????????????3.0,100???????1С?2?????飬72С?????????144;1??????????1.44

???????????????????????????A??E??????????????????????????????????A?????????E?????????Ч??????????90??~?????A???30??????90?????E???3??100J????Ч??????????????????????????Ч????СR?????R??A?????????????????????????R???????E????????????

?????????????????????????л??????Ч????????????????????????ж?????????????????????????E??????(???A??????????????)?????A??????0.56??????飬8С?4.48,1????????4.48;

E??????2.9??????飬72С?208.8?????飬1??????????2.088;

???A??????E???????????Ч????????46.6?Σ??????15???~~???????????7???????????E?????????????????????????A????130.5?μ?130.5?????43???????E????3??100J??Ч????

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