653121
1-5CCCDD
6,7CCBC
11ABCBB
16BBBD
20?CD21ACD22CD23ABD24ABD25ABCD
26ABC
27AB28BCD29ACD30ABCD
31\32\33\34\35\36\37\38\39\40正确
1-5DBBCD
BBCCC
DBBCD
1B2B3C4C5B
6C7A8C9B10B
11D12D13B14B15C
3B4C5C
6A7B
1C2B3A4A5A6A7C8B9B10A
11D12A13B14C15B