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By: t2108, Views: 590

Short revision of the properties of voltage and resistance.

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By: t2108, Views: 626

Short revision of series circuits and parallel circuits.

Watch Later 36:25

By: t2108, Views: 546

Short revision of household appliances, working principle of earth wire and fuse.

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By: t2108, Views: 674

Short revision of air composition, and simple facts about photosynthesis.

Watch Later 10:32

By: t2108, Views: 594

Short revision of simple facts about respiration.

Watch Later 13:18

By: t2108, Views: 819

Short revision of gas exchange in plants

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By: t2108, Views: 642

Short revision of gas exchange in animals.

Watch Later 0:58

By: t2113, Views: 508

F2 Unit 2 Reading Aloud 2

Watch Later 3:44

By: t2109, Views: 410

中五數學排列與組合組合

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