题干

关于在下列四种化合物的化学组成的叙述,正确的是(  )

A:①是腺嘌呤;①与④相同

B:②是腺苷;①比②多了脱氧核糖

C:③是腺嘌呤核糖核苷酸;③与④相同

D:④腺嘌呤;①比④多了核糖

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答案(点此获取答案解析)

D

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