1B2A3B4C5B

6C7C8C9C10C

11D12D13C14C15A

16C17B18A19B20A

21D22D23C24A25C

26D27A28A29A30D

31B32C33A34C35B

36D37C38C39C40C

1d2c3a4a5d6c7a8d9b10c11c12d13b14a15d

1c2c3c4d5c6d7b8c9d10c11c12a13b14d15b

1c2a3a4c5b6d7d8b9a10a11a12c13a14b15b

1b2a3b4c5a6a7b8c9b10c11c12d13d14a15a

1c 2c 3c 4D 5c

6选D是错的 

7B 8c  9c

10c 11c 12A 13B 14 D 15B

1C  2A  3 A  4C  5B  6D  

7D  8B  9A  10A 11 C  12C 13A 14B 15 B