??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??
??????????????|??????!???“????”
??????????????|??????!???“????”
??
????:
1????????:?????
2??????????
3???????power
4?????200????
5??????????
????
6
%
???:??