1. Which of the following characteristics does not contribute to chemical diversity of carbon-containing organic molecules?
(A) Length of carbon chain.
(B) Functional groups attached to the carbon by covalent bonds.
(C) Double bonds between carbons.
(D) Carbon isotopes.

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統計: A(0), B(0), C(0), D(1), E(0) #3308480

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題目解析 這道題目考察了碳基有機分子的...
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