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"Exploring the Impact of Environmental Pollution on Biology" The Impact of Human Activities on the Biosphere PPT Courseware 5
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2023-09-25 17:36:03
"Developing a plan to protect the ecological environment" The impact of human activities on the biosphere PPT courseware 5
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2023-09-25 17:36:03
"Exploring the Impact of Environmental Pollution on Biology" The Impact of Human Activities on the Biosphere PPT Courseware 2
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2023-09-25 17:36:03
"Building a Community with a Shared Future for Mankind" Our Common World PPT (Seeking Mutual Benefit and Win-Win in Lesson 2)
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2023-10-05 09:28:38
"Exploring the Impact of Environmental Pollution on Biology" The Impact of Human Activities on the Biosphere PPT Courseware 5
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2023-09-20 15:15:22
"Exploring the Impact of Environmental Pollution on Biology" The Impact of Human Activities on the Biosphere PPT Courseware 2
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2023-10-05 09:42:45
"Representatives of Early Humans in China—Peking Man" PPT courseware on prehistoric times in China
下载 106 次
2023-09-25 18:26:45
"Exploring the Impact of Environmental Pollution on Biology" The Impact of Human Activities on the Biosphere PPT Courseware 5
下载 453 次
2023-09-25 17:36:03
"Representatives of Early Humans in China - Peking Man" PPT courseware on prehistoric times in China
下载 631 次
2023-09-20 15:13:40
"Exploring the Impact of Environmental Pollution on Biology" The Impact of Human Activities on the Biosphere PPT Courseware 5
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2023-09-25 17:36:03
"Exploring the Impact of Environmental Pollution on Biology" The Impact of Human Activities on the Biosphere PPT Courseware 3
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2023-09-25 17:36:03
"Exploring the Impact of Environmental Pollution on Biology" The Impact of Human Activities on the Biosphere PPT Courseware 2
下载 749 次
2023-09-25 17:36:03
"Exploring the Impact of Environmental Pollution on Biology" The Impact of Human Activities on the Biosphere PPT Courseware 4
下载 967 次
2023-09-25 17:36:03
"Building a Community with a Shared Future for Mankind" Our Common World PPT (Lesson 1 promotes peace and development)
下载 883 次
2021-12-27 10:10:03
"Representatives of Early Humans in the Land of China-Peking Man" PPT Courseware of Prehistoric Era in the Land of China 3
下载 663 次
2023-01-05 15:16:07
"Representatives of Early Humans in China—Peking Man" Prehistoric Era in China PPT Courseware 2
下载 200 次
2023-09-25 18:26:45
"Representatives of Early Humans in China - Peking Man" Prehistoric Era in China PPT Courseware 2
下载 494 次
2023-10-05 09:33:35
"Representatives of Early Humans in China—Peking Man" Prehistoric Era in China PPT Courseware 3
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2023-09-25 18:26:45
"Ethanol and Acetic Acid" Organic Compounds PPT Courseware (Classification of Functional Groups and Organic Compounds in Lesson 3)
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2023-10-05 09:26:34
"Classification of Elements and Matter" Elements and the Material World PPT (an important mixture in Lesson 2 - colloid)
下载 535 次
2023-09-25 18:21:38
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