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Results for: 'general studies'

5.2_1_生活中的科學(一)

By: teacher, Views: 257

生活中的科學(一)

5.2_1_科學馬戲團

By: teacher, Views: 280

科學馬戲團

5.2_2_噪音污染

By: teacher, Views: 263

噪音污染

5.2_3_用電知多少

By: teacher, Views: 293

用電知多少

5.2_3_奇妙的電

By: teacher, Views: 244

奇妙的電

5.2_3_科學與科技-安全篇

By: teacher, Views: 293

科學與科技-安全篇

5.1_4_人人平等

By: teacher, Views: 243

人人平等

5.2_4_電與生活

By: teacher, Views: 239

電與生活

5.3_2_香港經濟的四大支柱行業

By: teacher, Views: 283

香港經濟的四大支柱行業

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