????:1??????????98:??????????????

2?????95?

3????????

4??????????

5?????????

?????2??????11???????????????(???????????? ?)2????????????11????????????????????????????,????????????????,???,???????????????,???????,?????????????

???????????,???????1??,??,????????,?????????????28?????50%??????????????????????????????????,???,??

????

?????,??,?,????????????????????????????????,???????????????????????49.9????????????,????????????,????????????????,?????????(????????)

???:???