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學院師父
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Physics
1.nss physics in life (long man)
1,2,3,4A(已售),4B(已售),energy and use of energy
Chemistry
New 21st century chemistry (jingkung)
1a,2b,3a,3b,3c,4a,4b
M2
Nss mathematics in action module2 (longman)
1,2,3
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