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

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

3??????????

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

5??????????150??

??:????????75????,“?????????”“75??????”“??????”??????????????????????????????????????????????????????????????,«???????»10????????2??«?????????»?

???????????????????????????????,??????“?????????????????”??????????????????????????,?????,??37%,???????????55%?

10??1??,???????????????32????«???????»,??75??????,????????????????????8?50???????????????,???

??????????????????????,??????????,???6?????,?????????????????????????????????????????????????????????,????“???????????????”,???“? ??”????,???????????????,???????75????,????,???????40%? ???:??