参考答案:
51~60 B C A A C B A C A B61~70 B C D C D C B D A C71~80 A A B A B B B D C D81~90 B D D C D B C A D C91~100 C C B D C D A C D B参考答案:
51~60 B C A A C B A C A B61~70 B C D C D C B D A C71~80 A A B A B B B D C D81~90 B D D C D B C A D C91~100 C C B D C D A C D B