Chauvinistic 发表于 2025-3-26 22:19:48

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割公牛膨胀 发表于 2025-3-27 05:06:16

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散步 发表于 2025-3-27 05:56:16

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Assemble 发表于 2025-3-27 11:44:57

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GROUP 发表于 2025-3-27 16:17:25

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inconceivable 发表于 2025-3-27 21:44:44

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完整 发表于 2025-3-27 22:24:49

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辩论 发表于 2025-3-28 03:32:37

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Oration 发表于 2025-3-28 08:26:48

Commercial Egg Production,re and 600 cases of eggs daily. Equipment consists of 4–5 miles of watering troughs or cups, 14 miles of feeders, 14 miles of egg belts, and several hundred fans and electric motors. Only one person is required to handle 100,000 birds.

Forsake 发表于 2025-3-28 14:18:34

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查看完整版本: Titlebook: Teachers Creating Context-Based Learning Environments in Science; R. Taconis,P. den Brok,A. Pilot Book 2016 SensePublishers-Rotterdam, The