?? ???????:????????4.2?? ????????
![](http://n.sinaimg.cn/front/509/w440h2469/20180702/hsEz-hespqry6303010.jpg)
????:1????????????:???????vx
2???????
3??????????
4???????????
5????????
?????????2????????????14? (???????????????????????????????????? ??)???????14?“???????????????????”????????,???2015?????????????3000???????????????????4.2???????????,???????????????????????????????????
?????,?????????,????????????????????????????????,??????????????????????????????????,??,????
???????????,???????????????,??,??2015???3000????4.2?????????????????????,?????????,????????????99.6%?????,???
?????,?????????“??????”,????????????????????????,?????????????“???”??????????6????????????10???????????????????????,??????????98%???,???????,?????????,??????“??????”?
????,?????????????????????“??????????????”????????????,????,??,????????????????????????(????????????????????) ?????????????????????????:???