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?7?????????????????18??????????? ??????18?????????????,???(?)?250?????????????????

????,????2021?????,?????????2024?????7????????????24????,?????????????????????????AA+?????????????????????AA-??????

????????????7?????????????????????????16???,???????17????????,20???????????????2?2.6%;20?5??????2.7%;20??????????????????10?2.8%;20?????20???3.05%;20????????30???3.15%;10????????3?????????4.336%;?????????????????7.5??7??????3.379%?

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