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"Understanding Internal Energy" Internal Energy and Heat Engine PPT Courseware 3
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2023-09-25 18:28:46
"Gas Exchange between the Human Body and the External Environment" PPT
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"Country and City" People Live in Society PPT
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2023-09-25 18:26:23
"Economic and Social Development of Western Europe" PPT download
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"Recovering Xinjiang" Invasion and Resistance PPT Courseware 2
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2023-09-25 18:25:38
"Science, Technology and Ideology and Culture (1)" PPT courseware
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2023-09-25 18:25:27
"Science, Technology and Ideology and Culture (2)" PPT courseware
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"City and Culture in the Song and Yuan Dynasties" PPT download
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2023-09-25 18:25:11
"The Shape and Size of the Earth" PPT courseware download
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2023-09-25 18:24:32
"The Movement of the Earth" Earth and Map PPT Courseware
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2023-09-25 18:24:12
"Reading Maps" Earth and Maps PPT Courseware
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2023-09-25 18:24:12
"Climate of the World" Weather and Climate PPT Courseware
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2023-09-25 18:24:07
"Several Common Bases" Acids and Bases PPT Courseware 4
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2023-09-25 18:21:24
"Balance of Common Point Forces" Force and Balance PPT Download
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2023-09-25 18:21:00
"Gravity and Elasticity" Interaction - Force PPT Courseware
下载 319 次
2023-09-25 18:20:57
"Motion and Stillness" Mechanical Movement PPT Courseware 3
下载 78 次
2023-09-25 18:20:40
"Resistors and Rheostats" Exploring Circuit PPT Courseware
下载 52 次
2023-09-25 18:20:33
"Household Circuit" Electric Power and Electric Power PPT Courseware 2
下载 572 次
2023-09-25 18:20:19
"Electric Power" Electric Power and Electric Power PPT Courseware 3
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2023-09-25 18:20:19
"Electric Power" Electric Power and Electric Power PPT Courseware 4
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2023-09-25 18:20:18
"Safe Use of Electricity" Electric Power and Electric Power PPT Courseware
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"Noise and Environmental Protection" Acoustic Phenomenon PPT Courseware 4
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"Nuclear Energy" Energy and Sustainable Development PPT Courseware 3
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2023-09-25 18:19:38
"Newton's First Law" Motion and Force PPT Download
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"Vaporization and Liquefaction" Changes in State of Matter PPT Courseware 5
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2023-09-25 18:19:07
"Sublimation and Sublimation" PPT Courseware on Changes in State of Matter 4
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"Sublimation and Sublimation" PPT Courseware on Changes in State of Matter 7
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"Hazards and Control of Noise" Acoustic Phenomenon PPT
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"Spice and Interest" Taste of Life PPT Courseware 5
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"Boys and Girls" You and I Walk Together PPT Courseware 3
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"Communication Connects Ten Thousands of Homes" Communication and Life PPT Courseware
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"The Formation of the Solar System and the Evolution of Stars" PPT
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"Bone and Muscle" Mysteries of the Human Body PPT Courseware
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"Observing Weather" Weather and Plants PPT Courseware 2
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"The Secret of Wheels and Axles" Tools and Machinery PPT Download
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"Flowers, Fruits and Seeds" New Life PPT Courseware
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"The Choice of Earthworms" Biology and Environment PPT Courseware
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"Average and Weighted Average" PPT Courseware 2
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"The Image and Properties of a Linear Function" PPT courseware
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"Understanding liters and milliliters" liters and milliliters PPT courseware
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"The Relationship between Fractions and Division" Fraction PPT Courseware
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"Understanding Grams and Kilograms" Kilograms and Grams PPT Courseware
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"Determine Location" Position and Coordinates PPT Courseware 4
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"Rotation of Surfaces" Cylinder and Cone PPT Courseware
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"Children's Paradise" counting and multiplication PPT courseware
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2023-09-25 18:02:47
"Dividing Game" PPT courseware on dividing and dividing
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"Variables and Functions" First Time Function PPT Courseware 4
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"Variables and Functions" First-time Function PPT Courseware 5
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