753125
1-5:DAABD 6-10:ABBCA
11-15:ABD AD ABC CD AB
16-20:××√×√
1 D 2A 3 4 5 6 7 8 9 10A 11 12 13 14 15 16错 17错 18对 19 错 20对
1-5DAABD 6-10ABBCA 11ABD 12AD 13ABC 14CD 15AB 16× 17× 18√ 19× 20√
