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

2??????????

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

4????????????

5???????

???,??,??????,?????,???????????,?,?????????????????????? ?? ? ????????????????????????? ????? ????????? ???????,??????????????????????? ??? ????? ?????????????????,??,???????DCS???,?????95%??,??????????? ???????? ????????????????????????????? ????? ???????? ??? ???????????1??????? ?????????????? ???????????? ???????,?????,???“????”???,????(???)? ? ???????:?????????????????