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

2????????

3?????????????

4?????50???1?

5???????

????6??16?????? ??:?????????????“80????”????????????? ?????????????????

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

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

1984???,????????????????,????????,?????,?????????????,??????

???????,???????????????????,??????????“?????”“????”,??????????????“??”,???“??????????,?????”?????2015?????????????,??????

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

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

??,?????,?????,?????????????,????????DR????

?????????,???60????????????????????????,???????500???????????????????????????????????????????????????,???CT??????????????????????????????????

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

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

“??15?????????20????????????????????”?????,?????????,???????????,?,???

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

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

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

“?????,???,????,???????????????????????????????????????????????????????,?????,CT??????”?????????????(?????????????????)

???:????