?????

??
????
1.???
2.???????????????????
3.???????R
?????????????
????????????
1.?????????80?????T????????
2.??????????
3.????1??????2????3???4??????????5??6????????????????
4.???????????????????
5.????????

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

??????????????????????????????????????
 ????????????20??????3-...

???? 1? 2?????? 3?? 4??? 5?? 6?
????
??????????????????????^
???????
????????????????
???????????????

????????30%?????25%??25%???????20%
1-??????????
2-????????????????????????
3-????????7?
????????????????????????????
??? ??????????????? 1??? 1??1820??5060%????? 2???????????? 3????? 4??????? 5???? 2???????????????? 3?????????? 4????????? 1???????????????????????? 2????????? 3??????????? 4??????????...

?
???????????????
1????????D?????
2??????
3???????

???????410???
1??
2?????????????
3????????
??
??????????????
1??????C???????????
2?????????????

??????????
1???????
2???????????
????

??????????????????
??????????????????3???????????????????????}?????????57??????5?????????????????
?????????????????????????????????????????????????(???)???(?)???????????????T????^??????????????????????????12?????????T??????C02???????
??????
?????