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

2???????????

3?????300??400

4??????

5???????

???????,????9???28??????,???,??????????????????“1????????????????”???

?164??,???????????????,??????????????4????????????,??120??????????, ????????????

????????????,??PPP?????,?????,???????????,?????????????????,?????????105???????????????,??30?????????????????

?????????????,??,?????????????????,?????????????????????;????“???????”??,??“???+?????????+???????????”??????????????,?????????,???,???85%?????????????????????“????”?

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

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