??
???2???12?? ?12?????????????????????,????????????????
?????,???,??????????????????
?,?????,?????????????????????????????????????,????????????????????????????,???????????????4???????,??16??8542???,???126???252???1?14???2???????5???,???807??,?????12.1??????????551??????????10.7?;???????????????????86?????????6600?????????;???????????????????????????170???????7600????????
?????:?????????????
????????????:??????????12.1????????????????