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

2??????v

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

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

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

?????,??????,“?”??????????

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

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

?????????????????????,????

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

??????????,?????????????????????????,?????????“????”??“??”???450??????????500????????,?????????????350?????????????????????

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

????,????,??????????????,?????????“??”????3.8?????????????????????,??????????????????????,?????????,????????

“??????,??????????????????50%????????????????????????????????????27%?????,??????20%????????????????”???,???,????,???????,???????????“????????”

?????,?????????????????“?????”????

????????????,?????????????????????,??????????????????????;

???????????,??,?????????????????????????????????????????????;

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

?????,????,?????……

“?????????,????????,?????????”???????,???8??,??,???????????,???“????????”?????

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