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????:1????????:?????????
2???????
3??????????
4???????
5???????
????,???????????????,????“??????????????15????1.5??”????“????10?1.5????”,??“?????10?????????????1.8??????”??????10????,?????????15??????1??????????????????,?1?????6????
?“???30?1.5???????????????????”??????,??50%??????????,???????“10???”,“?????”?“???????????”??,??????????,??“??”??????????????“???”?
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????,???????????????????????????,??????????????,?5000??,3900???3800?????;????????,??1-5??,?1????????33.9%?
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