?? ?? “?????????”31???????????
????:1?????????:???????????????
2??????????
3????????????
4?????
5????????
????10????30?? ??,10???????????26??,????,????????????????????30?,????100~350?,??????????400~500???????,?????????????????600~900????????????????,????1000?????????????????????,???
????????,30????????????????,???????,??????????????????????????????????????????????,????????????,????????(???????)?????????????,???
??????????????21?“???????”??30?????????????,08??560??,?17??(58??/???)???,“??????”?24????????,????,??58~62???/??(17??????????);31??(45~55?????/?,14~16???????????,????????????),??????
??????“????????”????,??????????24??,???????????????????????9~11??,??12~13????????????????????????????????,??12~16?,?????17?;????????????????????,??9~10???
??,?????,???????????????????????????????????????,??????????????????;??????????????,??????????????????????,2???
?????,????“??”???????,?????????????????????????????????,????????,?????????????????????,???
???:??