答案

1-5 CBACC     6-10 ACCBA     11-15 BBACC

16-20 BBCAB   21-25 BDCCB

26-30 ACDCB   31-35 ABCDB    36-40  AABCD

41-43 DBD      44-47 DBCB     48-51 DCBA    52-55 BAAC

56-60 BECAD 

61-65 daily  found  spread  brushing  difficulties

66-70 hopeless  added    enemies  waste  trained

71-80 my  healthy  which  southern  good  thousands  central  crop  introduced  seen