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• 2??????????????????6000??
• 3?????????????????64?
• 4????????2????????????
• 5???:????????????????
• 6PPI??5????????????
• 7???:????????????????
• 8????1?????????????????
• 9????????:??1??8000?
• 10?????????????????????
• 11???:?????????????
• 12??2???????????????????
• 13??2???????????????????
• 14????????????????????
• 15??:??????????????????
• 16?????????????????64?
• 17??????????????“??????”
• 18??????:???????????????
• 19?????????????????????
• 20CPI??????PPI?????