431 to 440 of 591 结果
Tab-Delimited - 13.3 KB - MD5: 66e2427f359259aa12209cb4e41eef16
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Tab-Delimited - 13.6 KB - MD5: 8f4d4de2c03a9def9bcd7316bd86ad7c
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ZIP Archive - 6.9 KB - MD5: 2dcfa2fb49925689863b64fbb7e5eafd
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ZIP Archive - 31.9 KB - MD5: cbe7cf4ecc2d1837ffcfd918dfa500bd
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2018-6-7
程, 玉清, 2018, "移动新闻App服务质量评价指标体系构建研究", https://doi.org/10.18170/DVN/QIMKD9, 北京大学开放研究数据平台, V1, UNF:6:RJkNJQp2OHJWGzxM5icexw== [fileUNF]
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MS Word (docx) - 12.6 KB - MD5: a9dac79b3a6ef440e2267027940ce050
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Tab-Delimited - 299.7 KB - MD5: 5a22dbdd5dcc6aa6957046a6aaa91d6a
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2018-6-7
文, 欣薇, 2018, "美国加州电力市场1999年-2000年各时段电量和电价", https://doi.org/10.18170/DVN/AEISSZ, 北京大学开放研究数据平台, V1
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ZIP Archive - 418.8 KB - MD5: b2e04ee785ff48e40130ea29074bb97a
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MS Excel - 561.5 KB - MD5: 5cdc90d19e5971f08affde7afa50297e
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