611332
1-10 CDDCCBAABC 11-20 ACAAADDDBC 21-30ACBBAAADCA 31:BCD 32:AB 33:ABCD 34:ABD 35:ABC 36:AD 37:ABCD 38:AB 39:CD 40:BCD 41-45 对错错错对 46-50 对对错错对