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我阿Sir 講過可以用尿來整炸藥, LOL
@susuki
靚女，你讀化學嗎？
讀chem後悔一生
Organic chemistry 真係hihi
好彩中學冇揀化學
有時係背極析唔入腦先死
元素表....
讀到就死…
化學一大堆要背的 雖然有通則可循 但是有一大堆特例
chem係理科入面最簡單嘅一科 其實操完past paper起碼保你5-5*
