602667
BCAAB BBCAB BCBAC AABCA 21.25.28.29.32.33对
1B.2不B.3A.4不B.5不C.6B.7不C.
8不B.9A.10D.11B.12不D.13不C.
14不B.15C.16A.17A.18不C.19不B
20不D.
21.25.28.29.32.33dui