?? ????????:??4.2???????? ???????
![](http://n.sinaimg.cn/news/transform/200/w600h400/20180619/PqRc-heauxvz3186241.jpg)
????:1????????:???vx
2?????
3??????????
4??????????
5???????
???2??14?? (? ????????????)???14????????????????“?????????????”??????????????????????,?????????2015?????3000?????????????????????4.2???????????????????,???????????????????????????????????
????,???????????????,????????????????????????????,????????????????????,??,?????
???,?????????,??????,???????????????????????????????2015??3000?????4.2????,????????????????????????????????????????,???????????99.6%????????????,??
???????????????????????,?????????“?”,?????????????????,?????“??”??????????????????6??????10????????????,??????????????98%????,????????,?????????,?????????“?????????”?
???,??????????????????????“?????????????”????????????????????,???????,??,?????????????????????????(???????????) ????????:?????