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If you look at the catalog, it looks like this:
1.09 unified entrance examination for postgraduate mathematics (1) questions and answers
2.09 Unified Entrance Examination for Postgraduates (2) Questions and Answers
3.09 Postgraduate Mathematics Unified Examination (3) Questions and Answers
4.08 Postgraduate Mathematics Unified Examination (1) Questions and Answers
5.08 Unified Entrance Examination for Postgraduates (II) Questions and Answers
6.08 Unified Entrance Examination for Postgraduates (III) Questions and Answers
7.2008 Unified Entrance Examination for Postgraduates Mathematics (IV) Questions and Answers
8.07 Postgraduate Mathematics Unified Examination (1) Questions and Answers
9.06 Unified Entrance Examination for Postgraduates (1) Questions and Answers
10.06 unified mathematics examination for postgraduate entrance examination (2) questions and answers
1 1.06 unified entrance examination for postgraduate students (3) questions and answers
12.06 unified entrance examination for postgraduate mathematics (4) questions and answers
13.05 unified entrance examination for postgraduate mathematics (1) questions and answers
14.05 unified mathematics examination for postgraduate entrance examination (2) questions and answers
15.05 unified mathematics examination for postgraduate entrance examination (3) questions and answers
16.05 unified entrance examination for postgraduate mathematics (4) questions and answers
17.04 unified entrance examination for postgraduate mathematics (1) questions and answers
18.04 unified mathematics examination for postgraduate entrance examination (2) questions and answers
19.04 unified mathematics examination for postgraduate entrance examination (3) questions and answers
20.04 Postgraduate Mathematics Unified Examination (IV) Questions and Answers
2 1.03 unified entrance examination for postgraduate mathematics (1) questions and answers
22.03 Postgraduate Mathematics Unified Examination (2) Questions and Answers
23.03 Unified Entrance Examination for Postgraduates (III) Questions and Answers
24.2003 Postgraduate Entrance Examination Mathematics (IV) Questions and Answers
25.02 unified entrance examination for postgraduate mathematics (1) questions and answers
26.02 Postgraduate Mathematics Unified Examination (II) Questions and Answers
27.02 Unified Entrance Examination for Postgraduates (III) Questions and Answers
28.02 Unified Entrance Examination for Postgraduates (IV) Questions and Answers
29.0 1 entrance examination for postgraduate mathematics (1) questions and answers
30.0 1 Unified Entrance Examination for Postgraduates (2) Questions and Answers
3 1.0 1 year Unified Entrance Examination for Postgraduates (3) Mathematics Test Questions and Answers
32.0 1 entrance examination for postgraduate mathematics (4) questions and answers
33.00 Postgraduate Entrance Examination for Mathematics (1) Questions and Answers
34.00 Postgraduate Mathematics Unified Examination (II) Questions and Answers
35.00 Unified Entrance Examination for Postgraduates (III) Questions and Answers
36.00 Postgraduate Mathematics (4) Q&A
But there is no 99, hehe!