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• 2?????????????????????
• 3??2?????????0.4%
• 4???????«????»????????????
• 5???????:????48???????
• 6??:??????????????
• 7????:?????????????????
• 8??-???????????????2-1??
• 9?????!??1????????9.9????
• 10????????????????????
• 11??GIF-???????????1??????
• 12?????????????????????
• 13????!?3?????9.8?????????
• 14??GIF-???????????1??????
• 15???:??????????????????
• 16??3?4?????????????????
• 17??????????? ???????????
• 18??:??????????????????
• 19??????2???????????:????
• 20«???»????????:???????