如各校同学对化学科上遇有疑难，亦可电邮给本人，本人亦乐于回答。
If anybody have questions about HKCEE Chemistry and HKAL Chemistry, send me the questions and I will try my best to give you the answer.
如各校同学对化学科上遇有疑难，亦可电邮给本人，本人亦乐于回答。
If anybody have questions about HKCEE Chemistry and HKAL Chemistry, send me the questions and I will try my best to give you the answer.
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