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