阿摩線上測驗
24. Which of the following chemical or physical changes is an endothermic process?
(A) the mixing of sulfuric acid and water
(B) the evaporation of water
(C) the freezing of water
(D) the combustion of gasoline
(E) none of these
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統計： 尚無統計資料
統計： 尚無統計資料
