????: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?,??,??? ??????? ?????????? ??????????:??????