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"Development and Utilization of Natural Resources" Chemistry and Sustainable Development PPT Courseware (Micro Topic 10)
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2023-10-05 09:39:15
The Enlightenment of Dripping Water and Stones Flash Animation Courseware
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2019-02-23 02:00:00
"Hydrosphere and Water Cycle" PPT download of the surface environment from the perspective of the earth's sphere (lesson 2: the movement and influence of sea water)
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2023-09-25 17:35:00
Fresh and simple natural scenery of lakes and mountains PowerPoint template download
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2023-10-05 09:19:22
"How to Carry out Social Investigation" The soil and water support the people PPT
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2023-09-25 18:26:24
"The Sink and Float of Materials in Water" Materials Around Us PPT Courseware 3
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2023-09-25 18:14:07
"Talk about Water Saving from Data" Data Collection, Arrangement and Description PPT Courseware 3
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2023-09-25 17:29:23
"The Open Pearl River Delta" A land and water support a people PPT courseware
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2023-09-25 18:26:25
"Where is my hometown" PPT courseware where the soil and water support the people
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2023-09-25 18:17:43
"The Sink and Float of Materials in Water" Materials Around Us PPT Courseware 2
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2023-09-25 18:14:07
"The Sink and Float of Materials in Water" Materials Around Us PPT Courseware 4
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2023-09-25 18:14:07
"Water Pollution and its Prevention and Control" Resource Protection and Environmental Crisis PPT Courseware
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2023-09-25 17:32:13
"Talk about Water Saving from Data" PPT courseware on data collection, organization and description
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2023-09-25 17:29:23
Download free PPT courseware "Don't forget the well digger when you are drinking water"
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2023-10-05 09:44:49
"Water Pollution and its Prevention and Control" Resource Protection and Environmental Crisis PPT Courseware
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2023-10-05 09:42:07
"Talk about Water Saving from Data" Data Collection, Arrangement and Description PPT Courseware 2
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2023-09-25 17:29:23
Natural scenery of grassland under blue sky and white clouds PowerPoint template download
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2023-10-05 09:12:16
"my country's Economic Center - Shanghai" The soil and water support the people PPT courseware
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2023-09-25 18:26:25
"Holy City on the Plateau - Lhasa" The soil and water support the people PPT
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2023-09-25 18:26:24
"Hydosphere and Water Cycle" Looking at the surface environment from the earth's sphere PPT
下载 93 次
2023-09-25 17:34:59
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