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【单选题】

下列()塑料可不加添加剂。

A.
有机玻璃
B.
聚四氯乙烯
C.
聚氯乙烯
D.
酚醛塑料
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参考答案:
参考解析:
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【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.

【多选题】塑料通常有如下()特性。

A.
密度小,比强度高
B.
具有优异的导电性能
C.
有良好的耐腐蚀性
D.
对酸、碱及有机溶剂等具有良好的耐腐蚀性能
E.
强度低,耐热性差,膨胀系数大,蠕变量大,易老化

【多选题】下列属于食品添加剂的是()。

A.
防腐剂
B.
酸味剂
C.
漂白剂
D.
凝固剂
相关题目:
【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.
【多选题】塑料通常有如下()特性。
A.
密度小,比强度高
B.
具有优异的导电性能
C.
有良好的耐腐蚀性
D.
对酸、碱及有机溶剂等具有良好的耐腐蚀性能
E.
强度低,耐热性差,膨胀系数大,蠕变量大,易老化
【多选题】下列属于食品添加剂的是()。
A.
防腐剂
B.
酸味剂
C.
漂白剂
D.
凝固剂