問題詳情

4The energy released by the sun is the result of:
(A)naturaf radioactivity
(B) nuclear fission
(C) nuclear fusion
(D) combustion of hydrogen
(E) photosynthesis

參考答案

答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)