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

2???sn??

3?????????

4?????vx

5???????200??vx????

?????9??1??? (? ??)?9??1???????????????????,????????????1???8????

??????????????????????????????8????????31????,?????8???67.30?,???5.98%,?????????(7?????????????????8????????),??????????115.47???????????,????6.99%,???????????,???????329.44??????????,???

???????????,?50%????????????????????????????????????

7????31????,???? ??? ???????

??,?,???5.2??,??????????????230%;??1.2?????????????,?????100%?

????,??,??37.6??????36??????,?“????????????????????”??

???????????????1?????????8???????????????????????,???10.2%,?580???,?????12%?(??)

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