????:1??????:94?95?

2?????

3??????

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

5???????

?????????2??21? (??????)?????????21??,?,??,????,??????????“????????”??,?????

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

???????,??????????????????????????????????????????????,????????????????????,???????????????16?????,????23?????,??????????13???????????????????????????35???????45??,??50%?

??????????????,??????????,??????????????;???????????????,???????????????????????????????????????????,??????????????????1??????????,???(????????) ????:?????????????????