問題詳情
【題組】50. What does the passage tell us about heat?
(A) It is sometimes needed for a chemical reaction.
(B) It is always the product of a chemical reaction.
(C) It is needed to change the atoms in a material.
(D) It does not affect chemical reactions in any way.
參考答案
答案：C
難度：適中0.5
統計：A(2),B(2),C(5),D(1),E(0)