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

2?????????????

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

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

5????????????

???2??3?? ????(BBC)????(NBC)?????,?????????2????2??????????,??????????,????????????????“??????”?????????????,????“????”?

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

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

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

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

????????????,“????????????????,??”

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

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