????:1?????????:3????100?

2???????

3????????vx

4????????

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

?????????:??????????????????,10??????????????,??????????????????,????????????????,?,?????????????

10????????,?????????????????????????????????,????0.7?????????????????????????,10????????????????,???????????9?????17.1?????????

?????????????10??,?????41?,??????????????27?????????????9??????,??????????,????9??22.3??????????????????,??17.8????????????????????,????????????4.5%,???

????,10????????,??????12.9%,??????????????1.9???????????????????,????????????73.3%?48.8%?

?????????????????????:“??????,??????????????????????????????????????,?????????????????????,?????????,????????????????????,????,?????”

?????:???