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Unit 34. Enthalpy Change of Reaction Part A 反應焓變  ???? 1

Unit 34. Enthalpy Change of Reaction Part A 反應焓變 ????

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$ 199
Unit 34. Enthalpy Change of Reaction Part B 反應焓變  ???? 2

Unit 34. Enthalpy Change of Reaction Part B 反應焓變 ????

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