Irascible 发表于 2025-3-28 15:45:31
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Vincent J. Guihanrovides a mechanism for promoting products/services via the Internet and its broader space encompasses e-marketing, e-advertising, customer relationship management and promotional activities. In this work, a mobile agent framework for Internet marketing is proposed which accomplishes the task of adv北京人起源 发表于 2025-3-29 06:16:55
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ystech Engineering. Inc .. 3744 Mt. Diablo Boulevard. Suite 101. Lafayette. CA 94549. U.S.A. and STEVEN A. GHERINI Tetra Tech. Inc .. 3746 Mt. Diablo Boulevard. Suite 300. Lafayette. CA 94549. U.S.A. (Received November I, 1984; revised May 14, 1985) Abstract. An integrated, interdisciplinary, intens显微镜 发表于 2025-3-29 13:42:13
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Steve Baker,Carol Gigliottiibution of workers, and the transportation system that connects jobs with workers. These factors jointly determine who has what level of employment accessibility in a metropolitan area. Understanding the geography of the urban labor market is essential for identifying spatially disadvantaged populat不理会 发表于 2025-3-29 21:08:33
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Lynda Birkeculture and urbanization, have drastically transformed natural landscapes everywhere around the world, inevitably exerting profound effects on the structure and function of ecosystems. In the past 120 years, the world has lost 500 million hectares of forest to land conversion (Houghton et al. 1983,constitutional 发表于 2025-3-30 07:46:53
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