参考答案

  21. DBACC 26. DBABD 31. CDAAA 36. CCADA

  41. BCACB 46. BBDCB 51. BBBAB 56. BBBCA 61. BDCDA 66. BCDBB

  71. CDBBD 76. ACBBD 81. ACACC 86. BAACC

备考推荐:“碾压”四级  限时福利