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4. Which is the most common element in the universe?(A) H (B) Co (C) Pb (D) Au(E) U
問題詳情
4. Which is the most common element in the universe?
(A) H
(B) Co
(C) Pb
(D) Au
(E) U
參考答案
答案:
[無官方正解]
難度:
計算中
-1
書單:
沒有書單,新增
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3. Which element was produced already in the Big Bang?(A) H (B) Co (C) Pb (D) Au (E)U
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