700858
1-5:BBDBC
6-10:BBABA
11-15:BBADB
16-20:ABAAC
20-25:BCDBC
26-30:BADAA
判断题:
31-35:×√×√√
36-40:×√×××
41-45:×√√×√
46-50:√√×√×
1234567 9 11 12 14 15 17 20 21 222324252628 31 33 36 38 39 40 41 44 48 50