?? ?????????????????
![](http://n.sinaimg.cn/default/1_img/upload/3933d981/w990h660/20180312/3bib-fyscsmu6742085.jpg)
????:1??????????????:??????????
2????????????
3???????????
4???????
5????????
2????13?,????,??????? ?? ?
2??????????13?????,??,??????????CT???????????,?,??????????? ? ?????
2?13??,?,??????? ???? ?????
2???????????????13???????????,?????,????,?????70%,??“???????????”?? ? ?
2??13????,??????????,???????????? ???? ?
2?????13?,?,????? ???? ?
2??13?????????,?,??,????70%,????“?”?????????????????????? ????? ????????????????
2?????13???????????????,??,??,????????????????? ??????????????? ????
2?13?????,??,????,?70%,????????????“?????”??? ????? ?
2?13?,?,??????? ? ???????????????
?????:??