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

2???????

3???????39???

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

5?????????

??,?????????,“??????”???

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

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

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

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

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

???????,“?????”???????“??” ?

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

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

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

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

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

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

??,????????????????????,???……

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

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