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By: t2108, Views: 715

Short revision of series circuits and parallel circuits.

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

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By: t1110, Views: 332

MATH_DSE_2015_Paper2_Q38

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By: t1110, Views: 314

MATH_DSE_2018_Paper2_Q38

Watch Later 34:17

By: t2108, Views: 750

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

Watch Later 2:50

By: t1110, Views: 382

MATH_DSE_1999_Paper2_Q15

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By: hlwong, Views: 628

2022年1月27日班主任節普通話祈禱

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By: t1110, Views: 316

MATH_DSE_1999_Paper2_Q17

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By: t1110, Views: 317

MATH_DSE_1999_Paper2_Q18

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