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

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

3?92?95?????

4?????

5????????

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

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

????????

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

?????????????:?????????