组成玉米和人体的最基本元素是_刷题宝

题干

组成玉米和人体的最基本元素是（　　）

A：氢元素

B：氧元素

C：氮元素

D：碳元素

上一题下一题 0.0难度选择题更新时间:2018-06-02 09:37:29

答案(点此获取答案解析）

D

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