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【单选题】
甜蜜素[C 6 H 12 O 3 NSNa]是一种甜味添加剂，下列有关甜蜜素的说法正确的是 [ ]
A.
它属于糖类
C.
其中C、H、O元素的质量比为6：1：4 C、它由五种元素组成
D.
它的相对分子质量为200
参考答案：
参考解析：
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举一反三
【单选题】甜蜜素[C 6 H 12 NSNa]是一种甜味添加剂．下列有关说法正确的是（ ）
A.
它是混合物
B.
它是无机化合物
C.
它由五种元素组成
D.
它的一个分子中含有20个原子
【单选题】Many Americans harbor a grossly distorted and exaggerated view of most of the risks surrounding food．Fergus Clydesdale, head of the department of food science and nutrition at the University of Massac...
A.
They overlook the risks of the food they eat.
B.
They overestimate the hazards of their food.
C.
They are overoptimistic about the safety of their food.
D.
They overstate the government's interference with the food industry.