丙烷CH3CH2CH3的1HNMR谱其各组峰面积之比(由高场至低场)是

丙烷CH3CH2CH3的1HNMR谱其各组峰面积之比(由高场至低场)是

A.3:1

B.2:3:3

C.3:2:3

D.3:3:2

正确答案:A

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