?? ??:???????? ??????????????
![](http://n.sinaimg.cn/news/transform/200/w600h400/20181213/LJRP-hqackaa9876600.jpg)
????:1?????????:????????
2?????
3??????????
4????????
5?????
????????2???6??? (??????????? ???????????)???6?????????????
?,?,??,???????
???????????????:??????????,??????????????????,?????????????????,???????????????,???(?????)
??????????????????:??????????????????