??????2??8??? ????(?)???????????????????????,????????????
???:????
?????????“????”???????
?????????????????????
????:????????????
?????????????????????
3?29?16?????????
?????????????:????????
????:????????10?20?0.6
???????????:???????????
???:???????????????????
??:?????80%??????????????
??:???????“??”???
???????????????GB????
?????????????:????????
????:???????3716??????????…
3?29???????????
?????????24400?
????“?”????????:??????
??????????????????
????MC?????????????????
?????????????:??????
?????????:????????????
????MC?????????????????
????????????682?????????
???????????????GB????
???:?????????????????