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By: t9505, Views: 774

F2_Math_10-PythThm_4A-RationalNumber

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By: t9505, Views: 899

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By: t1706, Views: 554

麥當奴賣的不是雪糕! 甚麼?!麥當奴的新地不是雪糕! 想知道自己到底在吃甚麼，就快進來看看吧!

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By: t1706, Views: 558

你有上癮嗎？今次和大家討論的問題是有沒有糖上癮。事實上，大家可能已在不知不覺間對糖產生依賴，後果可以很嚴重。一起來測試自己有沒有糖上癮的問題吧!

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By: t1706, Views: 545

墨魚、魷魚、章魚傻傻分不清?! 墨魚、魷魚、章魚、八爪魚、烏賊、花枝 ... ... 天呀! 到底牠們有甚麼特別? 又如何分辨牠們呢? 今次讓我們一起來分清楚吧!

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Chemistry tutotial-Ch1-1-Laboratory safety

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By: t0605, Views: 1232

Chemistry tutorial-Ch29-1-Primary cells and secondary cells

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By: t0605, Views: 1008

Chemistry tutorial-Ch29-2-Basic terms of chemical cells

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Chemistry tutorial-Ch29-3-Characteristics of chemical cells

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