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关注:1
2013-05-23 12:21
求翻译:regressions include a dummy variable if the patentee was a small entity in year four, and dummies if是什么意思? 待解决
悬赏分:1
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regressions include a dummy variable if the patentee was a small entity in year four, and dummies if
问题补充: |
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