简答题\n A 0 B 1 C 2 D -1 \n多选题\n A B C D \n多选题\n A B C D \n简答题\n A 0 B 1 C D -1 \n多选题\n A B C D \n多选题\n A B C D \n多选题\n A B C D \n简答题\n A 0 B 1 C 不存在 D -1 \n简答题\n A 0 B C D \n多选题\n A B C D \n