11? 18?, ??? ???????? ???? ?? ?????? ???? “??????”(??? ???? ????? ??)? ?? ??? ??????? ??. 19? ???? 6729?? ??? ????? ?? ??? ?????? ??? ?????? ???.
“20-30?”, “30-40?”,”40?? ? ??”????? ??? ???? ????? ??????? ??47.76%、51.95%、52.23%??. ??? ?????? ???????? “??? ??? ? ???”? ??? ??? ?? ?????? ??18.63%、59.74%、75.95%? ????.
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????: 1. ??????? ?? ??, ??? ???? ??? ??? ???? ?? ??? ??? ??? ??? ?? ??? ????? ??? ??. 2. ???? ??? ??? ??? ?? ??? ????. 3. ??? ??? ???? ??? ??? ??? ???? ?????? ?? ?? ??? ??? ??. 4. ???? ??? ??? ??? ?? ?? ??? ???? ????? ??????? ???? ??. |
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