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( ) () 2.7 3 70 151 4A 2 3A 《 》 1 12 1070 3580 1218 29 60 133.3 6 2007 35.3 52 2007 16 4 180 90 20 PVC20 81% 57124 2003 174934 12.1% 15.1% 4483 11678 37.4% 75 39.4% 12 75 29.6% 2007 34
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