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"Chinese Pinyin jqx characters and pinyin" PPT
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2023-09-25 17:46:59
"Chinese Pinyin aoouiu Characters and Pinyin" PPT
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2023-09-25 17:46:58
"The Sound of Nature" PPT download
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2023-10-05 09:48:35
"Strength and Weakness of Sound" PPT Courseware 2
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2023-10-05 09:47:39
"The Occurrence and Propagation of Sound" PPT
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2023-09-25 18:18:51
"Who Can Spread the Sound" PPT courseware
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2023-09-25 18:16:19
"Sounds of Nature" PPT courseware
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2023-09-25 17:55:38
"Chinese Pinyin aieiui word and pinyin" PPT
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2023-09-25 17:46:58
"Pay Attention to the Urban Environment" PPT courseware
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2023-09-20 15:12:39
"Environmental Issues and Our Actions" Environment and Us PPT Courseware 2
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2023-09-25 18:15:21
"Scientific Inquiry: The Generation and Transmission of Sound" The World of Sound PPT Courseware 4
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2023-09-25 18:20:29
"How Sound is Produced" Various Sounds PPT Courseware 2
下载 718 次
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"How Sound is Produced" Various Sounds PPT Courseware 2
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"How do we hear sounds" Various sounds PPT courseware 3
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"How Sound is Produced" Various Sounds PPT Courseware 3
下载 426 次
2023-10-05 09:44:01
"Interesting Food Connections" Biology and Environment PPT Courseware
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2023-09-25 18:15:55
"Food Chains and Food Webs" Biology and Environment PPT Courseware
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"Maintaining Ecological Balance" Biology and Environment PPT Courseware 4
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"Seed Germination Experiment (1)" Biology and Environment PPT Download
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"Food Chains and Food Webs" Biology and Environment PPT Download
下载 996 次
2023-09-25 18:14:40
Download the PPT courseware of "The Mutual Influence of Organisms and Environment"
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2023-09-20 15:21:05
"How Sound is Produced" Various Sounds PPT Courseware 3
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2023-09-25 18:15:51
"Make an Ecological Bottle" Biology and Environment PPT Courseware 3
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2023-10-05 09:43:14
"Seed Germination Experiment (1)" Biology and Environment PPT Courseware
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2023-09-25 18:22:17
"Make an Ecological Bottle" Biology and Environment PPT Courseware 5
下载 478 次
2023-09-25 18:14:49
Download the PPT courseware of "The Mutual Influence of Organisms and Environment"
下载 913 次
2023-09-20 15:21:05
"Seed Germination Experiment (1)" Biology and Environment PPT Courseware
下载 493 次
2023-10-05 09:49:05
"Maintaining Ecological Balance" Biology and Environment PPT Courseware 4
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"Interaction between Biology and Environment" PPT courseware download
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2023-09-25 18:28:18
"How do we hear sounds" Various sounds PPT courseware 2
下载 269 次
2023-09-25 18:15:50
"Environmental Issues and Our Actions" Environment and Us PPT Courseware 3
下载 653 次
2023-09-25 18:15:21
"Make an Ecological Bottle" Biology and Environment PPT Courseware 2
下载 246 次
2023-09-25 18:14:49
"Seed Germination Experiment (2)" Biology and Environment PPT Courseware
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2023-09-25 18:14:41
"Interesting Food Connections" Biology and Environment PPT Courseware
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2023-09-20 15:16:59
"Maintaining Ecological Balance" Biology and Environment PPT Courseware 2
下载 208 次
2023-10-05 09:49:06
"Maintaining Ecological Balance" Biology and Environment PPT Courseware 3
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2023-10-05 09:39:10
"Food Chains and Food Webs" Biology and Environment PPT Download
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"Make an Ecological Bottle" Biology and Environment PPT Courseware 3
下载 459 次
2023-09-25 18:14:49
"Make an Ecological Bottle" Biology and Environment PPT Courseware 4
下载 92 次
2023-09-25 18:14:49
"Maintaining Ecological Balance" Biology and Environment PPT Courseware 2
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"Maintaining Ecological Balance" Biology and Environment PPT Courseware 3
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"Seed Germination Experiment (2)" Biology and Environment PPT Download
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"Main Vegetation and Natural Environment" Vegetation and Soil on the Earth PPT
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"Applause" PPT
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"Chemistry and Environmental Protection" Chemistry and Social Development PPT teaching courseware
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2023-10-05 09:38:16
"Hydosphere and Water Cycle" Looking at the Surface Environment from the Earth's Sphere PPT (Lesson 2)
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"Echo" PPT
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"Applause" PPT
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2023-09-20 15:12:20
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