参考答案：

1　a                     35　b                     69　abcde
2　a                     36　d                     70　abcde
3　a                     37　b                     71　abcde
4　c                     38　d                     72　ad
5　a                     39　a                     73　acd
6　c                     40　d                     74　acd
7　a                     41　c                     75　abcde
8　d                     42　a                     76　ab
9　a                     43　c                     77　bcd
10　d                    44　c                     78　acd
11　a                    45　b                     79　bcd
12　c                    46　c                     80　abc
13　b                    47　b                     81　c
14　c                    48　b                     82　b
15　c                    49　d                     83　c
16　c                    50　a                     84　d
17　a                    51　b                     85　ad
18　b                    52　a                     86　a
19　c                    53　d                     87　b
20　c                    54　d                     88　d
21　d                    55　c                     89　a
22　a                    56　a                     90　d
23　b                    57　b                     91　b
24　a                    58　c                     92　a
25　b                    59　b                     93　c
26　b                    60　a                     94　d
27　a                    61　abcd                  95　c
28　b                    62　abcd                  96　a
29　d                    63　ac                    97　abcd
30　b                    64　acd                   98　b
31　d                    65　ad                    99　d
32　a                    66　abcd
33　c                    67　bc 
34　d                    68　acd