17. How many electron pairs are shared between the carbon atoms in C₂H₄?
(A) 5
(B) 4
(C) 3
(D) 2

(E) 1

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統計: A(0), B(0), C(0), D(2), E(0) #3468765

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1. 題目解析 題目問的是在乙烯 (C₂...
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