????,??“??”,??,??????,???
(???? ?????????????????????)
???:???????????
??3?4?????????????????
???????????3?????????
????????????????high?
???:??????????????????
??:????“???”?????????
???:??20???????????????
??2?????????0.4%
????“??”A???????????????
???????????:??????????????
????????????10???????
???????????300??????(?)
?????!???????????
????:????????????????3.3?
???:??????????????????
????:?????????????????
??????????:????,????!
??????????????????
??:??????????????
????:???????????????
???????????????:????
GIF-???????????????????
???????????????????
?????!??1????????9.9????
??????????????????????????
?????????????:???????