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??2????5???? (??????????? ???????)??????????2??????????5????????????????????????,??????????4????,??2311??????????
???1???2???????? ??? ????????????????????????????,?1995.6????????????????,???5.2%?????????351.8???,????185.8?,???????????1??????????????????????2???????49.4??????????????????
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????APP????????????,????????????,20????30??26%,????????????,??????,??????????,??????????????????????????????????27.7??????
??,????????????????????,??19.5??,????????????????????????????25.7????,?28.2%,??????8%??????????????????11.8??,?,???IP???????“???”?????????????????????????,??????????????????????????,???????????????????????????????????????
?????????????? ???????? ??????????????,???????14???19???????,22?????????????,??????????????????,???????????“???????”,????????????????????(????)
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