????:1????????????:??????????

2?????600?????

3????????????

4????????????

5??????????????

?????,???????1.7????,??6.3?????????????????????1??????????10???????????,?????????????????????????????????????????????????2.6??????????

????????????????????????,??,?????“????”,?,????????????????????????,??“???????”??????“????”?

? ???:“????????????????”???????????“???”??????????,??????????????

????,??????“??”????????,??1000???????????,?????????????,?“????????”????????,??

????,???????,?????????????????????“??”????“????????????????????????????”??????????,?????

????????? ????????:??????28.6??????????????????,??700????,??????????????8500?????,????12??(??) ?????????????:????