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

2???????

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

4????????

5?????????

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

?,???????????????,??????????????50????60?70????,??,?????????????????????,?,?????????????,?????,???????,????????????????????,“?????????,??????????????,???????????”?????????????,?????,??????????“??????????”????????????????,????????????“?”,?????????,????????????“????????????”?

?????????,???????????????????“???????”???????????????,?30-50??????????,????;??????????50???20%??????????????????18??,??????,???????????????,?????????????????????6??????,?????????????,????“??????????”??????????????,??,????????,?????????????????“????????”“??????????”“50?????????”“??????”?????????,????????????,?????????????????,?????????????????????????????,????????????????,????????????,???????????????????“???”???????“??”??

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

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