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How "Electromagnetic Waves" Transmits Information—Introduction to Communication Technology PPT Courseware 3
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"Treasure Life" life thinking PPT (enhance the resilience of life in the second lesson)
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"How to know and measure current" explores simple circuits PPT courseware 2
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"Exploration - What does the magnitude of frictional force have to do with" Motion and Force PPT Courseware 3
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"Exploration - What does the magnitude of frictional force have to do with" Motion and Force PPT Courseware 5
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"How to Compare the Speed of Work" Mechanical Work and Mechanical Energy PPT Courseware 2
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