?????????????11????????????????????22???? ?????22????????????,??????????????????????????????,?????????

??,????????????????????????,??????????????????????????29???????,??????????????15??????????,??????????????

???,?????,???,??????????,??,???????????????818.6?????,??48.8%;????,??????488.5???????????,?????78.6%?

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

?? ????:???818.6???,???????????48.8%

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

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

3???????????

4?????

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

?????????????11????????????????????22???? ?????22????????????,??????????????????????????????,?????????

??,????????????????????????,??????????????????????????29???????,??????????????15??????????,??????????????

???,?????,???,??????????,??,???????????????818.6?????,??48.8%;????,??????488.5???????????,?????78.6%?

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