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二、意图：
1101-1120 BADCA DCADD BCAAC BDCAB
1121-1140 AACDA BBACC DCADC CACDB
1141-1160 CBCBA BDADA CBDAC ABCBB
1161-1180 DACBB DAACA CDDDC ABCAC
1181-1200 CCAAD CADBA BBADC BABAB
1201-1220 ADDAB CDABD AABDC BABDD
1221-1230 BBDCB BAADA
郭帅老师 
