收精工出版社化學teacher account（ Jing Kung Chemistry）
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i have a lot resources for exchange
1. melody tam(7subjects 5** notes)
2. physics question bank and notes
3. chemistry question bank and notes
4. mathemetics question bank and notes
5. LS question bank and notes
6. 中文各種resource（eg.5星星中文範文集、HKU中文補習skills notes、儒家思想、語錄、yylam5星星說話視頻等超過20多份notes）
7.各科pastpaer
8.英文各種resource（eg. billyNG MOCK、各種名師notes，Calvin sum、pchan essay、Oxford Advanced 2013 section）9：teacher account of pearson/ aristo/啟思
