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

2???100????

3???????

4????????

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

?????????(????????):???,????????,??????,????

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

??????????????,????????????,?????????,??????????????????????????????????????,????????????,????????60???,???????????????????

???,???????????;???????????,???????;????????,???????????????90%?

????,“?????????????????????”??????????????,???????????,60?????????????34%,?????????????????????????????????????

???????,???????????????????????,??????????,?????6??????????????????,??50%??,??????????“?????????????????????????????”??,?????????????

????,2???????5????,??????????????????????????24%? ??????????:???