???2???20??????????(???)??????????18??????????????25%??????,???????????????BBC?????,?2?19??????????1?,??,???????“??????????”?
??,???????????????,????????,????
??BBC????
??????,???????????????????????1?,???(???????)
?????:?????
?????????????????
?????????????????????
??2???????????????????
???:????????????????
??????????????8???
?????????????????????
??2??????2?1600?????2?
???????????????61???(?)
?????????????????????
???????????????
????:??5?????????????
??????????????“??????”
??????:????????????
???????????:??????????
????????????????????
???????100??????????1500
?????????????????????
????1?????????????????
50???????????:?????????
?!????????????
??????????????????????
????:????????????????
???????:????????????????(?…
??3?????????0.2%
???????????14???????????(?…