????:1???????????:????????

2??????????

3?95?98?????

4????????

5??????????

????????,????,????“?????????”???????????????????????????????????,??????

“90%?????????”

????,????????????????,???????????,????????????????????“????????”,???????????????CT????????,??????????????,???????????????

?????????????,?????5???????“?????????”,5????????10???????????????????????????“??????????????”,??????????,???????????1??????,??????????????????,??????????????70%??????

??????????,?????:“??????,??????????????????????90%???”

??????????????????,???????????CT????????,????;???????,????????3??????6?????,?????????????????????????1???,???????,??????????

?????????????,??,?????????,????,??“??”,??????????

??,???????????????????????????????????????,???????????,???????,???????

??????????????????????

????,??????10%????????????????????????,???,????????????

????“????”,??10?????????????,??????????????????“?????”????,????????,“??????,???,?20?????????????????”

???????????,??,?????????“???????????????,??????????”??,???,????????????????????,??????????????????????,???????????

?????????“????”,???????????????????????????????,??,?????????????????????“???????”,????????????????????????????????????,?????????

??????,????????????????,?????,???

???????????

???????????????????,???????????,?????????????,?????????????

??????????,“????,????????????,???????????????????,?????????????‘????????’,????????????1??????????????,?????,?????????????????”

??????????,?????????????CT????????????????????????????,??????????????????????,??????,??????????????????????????,???????????,?????????????????

???,??????????,???????????????????????,??,?????,????????????????????????,????????????????,???????????????“??????”,???????????

“????????????????????,????????????????,????????????????,????”??(????????????)(«?????»??????) ??:???