???2??18?? (? ??)????18??????????????

???????????????????:????????«?????»????????????????,???????????,????????,???????????????????????????

????????????????????:?????,??,??(????????????????????)

????:???????? “????sn????”_????

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

????:1?????sn????:??????

2???????,600??????

3?????

4????????150?

5?????????

???2??18?? (? ??)????18??????????????

???????????????????:????????«?????»????????????????,???????????,????????,???????????????????????????

????????????????????:?????,??,??(????????????????????)

????:????????