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

2????100?????

3????????

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

5??????????

??6??17???????? (?????????? ???????????? ??)??,??????????????????“???????”??????????????????,???,?????????????????????????,????????

??,????? ??

???????????????????,?????????15%???????????????????????????????500??;??300??,??????????210?????

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

??,????????????????????,?????????????????????“???”????,?????????????????????????(??????)????????????????????????,????“??”???????????????????????????????,???????

???????????????????????,?,????30?????????????????????????????,?2000????????????????,?????????????6.1???????,??,???,????????????????????

????????????????,??????????????10???????????,??????3.72???,???,???????????????????2.38???(??)

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