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【判断题】

在切削油或乳化液中加入了硫、氯和磷极压添加剂后,能在高温条件下显著提高冷却和润滑效果。

A.
正确
B.
错误
举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【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.

【单选题】切削油主要由()构成。

A.
动物油
B.
植物油
C.
动物、植物油
D.
矿物油

【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