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251. 基于Ruby On Rails的在线教学辅助系统的设计与实现
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252. All-on-four无牙颌固定义齿修复的临床研究
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253. On embedding infinite cyclic covers in compact 3-manifolds
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254. Research on Impact of Implementing ISO 14001 Environmental M
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255. 浅谈代词on在语用中的模糊性与复杂性
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256. 1-MeV electron irradiation effects on InGaAsP/InGaAs double-
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257. A Report on Translation of Nordic Market Report 2014
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258. IMCI: an efficient fingerprint retrieval approach based on 3
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259. 汉语“上/下”与英语“on/under”的对比及对外汉语教学研究
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260. 14th IFIP /IEEE International Symposium on Integrated Networ
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