选择
1 B C C D D BD CD BC ABD
2 C C B A C B AD AD ACD
3 BC A C A C D D B AC B
D A C C D B C A AB
4 A C C D C C B B D C C
   B A C BC BD AC ABD BD ABD
5 D C A D C ACD BC ABC AB
6 C C D B B AD BC AC BD
                      ——此答案由LZ独家提供