人体缺乏维生素C(简写VC)就会患坏血病。右图为某品牌维生素C片

人体缺乏维生素C(简写VC)就会患坏血病。右图为某品牌维生素C片说明书的一部分。根据信息进行的计算错误的是

A.每片含VC质量为10mg   

B.若成人每天对VC的最低需要量为60mg,每天可服用该品牌维生素C3       

CVC中含碳、氢和氧三种元素的质量比为9:1:12

DVC中碳元素的质量分数为30%

答案

D

【解析】 

试题分析:根据商标中提供的信息可A选项每片VC质量为10mg是正确的叙述;B选项是正确的叙述,根据叙述可知60mg÷100mg×10%×2/ =3次;C选项根据化学式可知VC中含碳、氢和氧三种元素的质量比为9:1:12是正确的叙述;D选项VC中碳元素的质量分数为30%是错误的叙述,9/22×100%<30%;故选D

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