?????33?????????1017????????????????????????????????122?????????????
0.1
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1997Ӧ̧??????????̧???
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???1.0?0.9
???????????????????????????????????0.1???????????????????
????17
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??????????100?30???70%??????
?????1999???
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6?????2001????????5?
??????????????????30?
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2003??????
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2009???????????????????
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?????p?
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