http://bkds.ustb.edu.cn/ Journal of University of Science and Technology Beijing ( Social Sciences Edition) en 1008-2689 http://bkds.ustb.edu.cn/article/id/a30afa55-cc79-46b9-b34d-9a2e2264fd64 Personal use only, all commercial or other reuse prohibited ljj雷竞技下载学报社科版. 1997 13(2): 1-7. article doi: ljj雷竞技下载学报社科版 13 2 http://bkds.ustb.edu.cn/article/id/a30afa55-cc79-46b9-b34d-9a2e2264fd64 1 http://bkds.ustb.edu.cn/article/id/c761fab3-0467-4482-adee-d166bc9ad6df Personal use only, all commercial or other reuse prohibited ljj雷竞技下载学报社科版. 1997 13(2): 8-11. article doi: ljj雷竞技下载学报社科版 13 2 http://bkds.ustb.edu.cn/article/id/c761fab3-0467-4482-adee-d166bc9ad6df 8 http://bkds.ustb.edu.cn/article/id/d0441476-c227-43a9-88b8-2e87ecdd6abc Personal use only, all commercial or other reuse prohibited ljj雷竞技下载学报社科版. 1997 13(2): 12-16,23. article doi: ljj雷竞技下载学报社科版 13 2 http://bkds.ustb.edu.cn/article/id/d0441476-c227-43a9-88b8-2e87ecdd6abc 12 http://bkds.ustb.edu.cn/article/id/fb319931-2060-4fa5-9dd5-fe94a7ccb9ad Personal use only, all commercial or other reuse prohibited ljj雷竞技下载学报社科版. 1997 13(2): 17-19. article doi: ljj雷竞技下载学报社科版 13 2 http://bkds.ustb.edu.cn/article/id/fb319931-2060-4fa5-9dd5-fe94a7ccb9ad 17 http://bkds.ustb.edu.cn/article/id/dc1d54e8-a5b8-4327-a688-ae0dfcb3edde Personal use only, all commercial or other reuse prohibited ljj雷竞技下载学报社科版. 1997 13(2): 20-23. article doi: ljj雷竞技下载学报社科版 13 2 http://bkds.ustb.edu.cn/article/id/dc1d54e8-a5b8-4327-a688-ae0dfcb3edde 20 http://bkds.ustb.edu.cn/article/id/9975cf2d-eac3-45e0-a5d1-84d845c32fa5 Personal use only, all commercial or other reuse prohibited ljj雷竞技下载学报社科版. 1997 13(2): 24-26. article doi: ljj雷竞技下载学报社科版 13 2 http://bkds.ustb.edu.cn/article/id/9975cf2d-eac3-45e0-a5d1-84d845c32fa5 24 http://bkds.ustb.edu.cn/article/id/8e87f0db-f25b-4bc1-89e8-3d5ef5e86188 Personal use only, all commercial or other reuse prohibited ljj雷竞技下载学报社科版. 1997 13(2): 27-31. article doi: ljj雷竞技下载学报社科版 13 2 http://bkds.ustb.edu.cn/article/id/8e87f0db-f25b-4bc1-89e8-3d5ef5e86188 27 http://bkds.ustb.edu.cn/article/id/a093ce4f-0721-4cf4-a551-1f5998048a61 Personal use only, all commercial or other reuse prohibited ljj雷竞技下载学报社科版. 1997 13(2): 32-36. article doi: ljj雷竞技下载学报社科版 13 2 http://bkds.ustb.edu.cn/article/id/a093ce4f-0721-4cf4-a551-1f5998048a61 32 http://bkds.ustb.edu.cn/article/id/0c2fec0e-d102-48cf-8716-a5d0537c9cad Personal use only, all commercial or other reuse prohibited ljj雷竞技下载学报社科版. 1997 13(2): 37-39. article doi: ljj雷竞技下载学报社科版 13 2 http://bkds.ustb.edu.cn/article/id/0c2fec0e-d102-48cf-8716-a5d0537c9cad 37 http://bkds.ustb.edu.cn/article/id/440a9e3a-395d-47a8-bf38-edd0e85e5532 Personal use only, all commercial or other reuse prohibited ljj雷竞技下载学报社科版. 1997 13(2): 40-41. article doi: ljj雷竞技下载学报社科版 13 2 http://bkds.ustb.edu.cn/article/id/440a9e3a-395d-47a8-bf38-edd0e85e5532 40 http://bkds.ustb.edu.cn/article/id/d67a21be-d68e-429d-b931-06484e6c5a7f Personal use only, all commercial or other reuse prohibited ljj雷竞技下载学报社科版. 1997 13(2): 42-44,41. article doi: ljj雷竞技下载学报社科版 13 2 http://bkds.ustb.edu.cn/article/id/d67a21be-d68e-429d-b931-06484e6c5a7f 42 http://bkds.ustb.edu.cn/article/id/740728d9-226b-4184-a03d-e6c3bafb9b96 Personal use only, all commercial or other reuse prohibited ljj雷竞技下载学报社科版. 1997 13(2): 45-47. article doi: ljj雷竞技下载学报社科版 13 2 http://bkds.ustb.edu.cn/article/id/740728d9-226b-4184-a03d-e6c3bafb9b96 45 http://bkds.ustb.edu.cn/article/id/155521a2-7f57-429f-a65e-be216d55361c Personal use only, all commercial or other reuse prohibited ljj雷竞技下载学报社科版. 1997 13(2): 48-50. article doi: ljj雷竞技下载学报社科版 13 2 http://bkds.ustb.edu.cn/article/id/155521a2-7f57-429f-a65e-be216d55361c 48 http://bkds.ustb.edu.cn/article/id/29151920-83fb-4391-87a4-15444f926593 Personal use only, all commercial or other reuse prohibited ljj雷竞技下载学报社科版. 1997 13(2): 51-53. article doi: ljj雷竞技下载学报社科版 13 2 http://bkds.ustb.edu.cn/article/id/29151920-83fb-4391-87a4-15444f926593 51 http://bkds.ustb.edu.cn/article/id/ca1e2963-db1d-4a31-9ca0-94f5abc20c1f Personal use only, all commercial or other reuse prohibited ljj雷竞技下载学报社科版. 1997 13(2): 54-56. article doi: ljj雷竞技下载学报社科版 13 2 http://bkds.ustb.edu.cn/article/id/ca1e2963-db1d-4a31-9ca0-94f5abc20c1f 54 http://bkds.ustb.edu.cn/article/id/64ab053e-d7dd-4f6e-943b-b88dbdd3b9d3 Personal use only, all commercial or other reuse prohibited ljj雷竞技下载学报社科版. 1997 13(2): 57-59. article doi: ljj雷竞技下载学报社科版 13 2 http://bkds.ustb.edu.cn/article/id/64ab053e-d7dd-4f6e-943b-b88dbdd3b9d3 57 http://bkds.ustb.edu.cn/article/id/82deccbd-59ec-4746-bb45-2c96b27c6952 Personal use only, all commercial or other reuse prohibited ljj雷竞技下载学报社科版. 1997 13(2): 60-61. article doi: ljj雷竞技下载学报社科版 13 2 http://bkds.ustb.edu.cn/article/id/82deccbd-59ec-4746-bb45-2c96b27c6952 60 http://bkds.ustb.edu.cn/article/id/ff107d0e-5af3-4381-be9c-6df46c3b7f21 Personal use only, all commercial 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