????2??????????17? ???????????,?????(?????????????????????????)???(??????)???,????????????,????????????,??????????????
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4?10??????????10????13?
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??2?????????0.4%
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????!?3?????9.8?????????
4?10??????????10????13?
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????????????????high?
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??????:?????9?9??????
????:?????????????????
2017????????????10?????
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??????????????4?????2??
GIF-???????????????????
????:??????????????!
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???????????3?????????