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"Development and Utilization of Natural Resources" Chemistry and Sustainable Development PPT Courseware (Micro Topic 10)
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Cloud sea fairyland Chinese style PPT template
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Natural scenery slideshow template download with blue sky, white clouds and waterfall background
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Natural scenery slideshow template download with blue sky, white clouds and waterfall background
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"Sing a Song of Confidence" Raise the Sail of Confidence PPT Courseware 5
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"Developing a plan to protect the ecological environment" The impact of human activities on the biosphere PPT courseware
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"Application of Geographic Information Technology" Basic Methods of Physical Geography Practice PPT Courseware
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PS color ring plugin coolorus mac version
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"Development and Utilization of Natural Resources" Chemistry and Sustainable Development PPT Courseware (Lesson 1)
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