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Watch Later 7:35

S5 Geog 11.4A 珠江三角洲區域有哪些環境問題？空氣污染

Watch Later 9:43

S5 Geog 11.3E 珠江三角洲區域急速的工業化和城市化，怎樣影響區內的農業發展？(下)

Watch Later 6:39

S5 Geog 11.3D 珠江三角洲區域急速的工業化和城市化，怎樣影響區內的農業發展？(上)

Watch Later 6:11

S3 Geog 5.5f - 為甚麼土地會劇烈震動？我們有甚麼措施應付地震？

Watch Later 1:45

S3 Geog 5.5e - 為甚麼土地會劇烈震動？地震在哪裏發生？

Watch Later 3:48

S3 Geog 5.5d - 為甚麼土地會劇烈震動？板塊移動怎樣引起地震？

Watch Later 6:30

S3 Geog 5.5c - 為甚麼土地會劇烈震動？為甚麼地殼會移動？

Watch Later 26:22

4S Maths Topic 14 Application in Trigonometry_16

Watch Later 3:37

S3 Geog 5.5b - 為甚麼土地會劇烈震動？地球的結構是怎樣的？

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