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【单选题】
四乙基铅曾用于汽油的添加剂,其作用是( )
A.
防腐剂
B.
防冻剂
C.
防爆剂
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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.
【单选题】某汽油辛烷值达不到90#汽油标准，加少量四乙基铅后就合格，且分析指标附合国家标准，此行为属()行为。
A.
. 合理
B.
. 合法
C.
. 违法
D.
. 合理但不合法
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.
【单选题】某汽油辛烷值达不到90#汽油标准，加少量四乙基铅后就合格，且分析指标附合国家标准，此行为属()行为。
A.
. 合理
B.
. 合法
C.
. 违法
D.
. 合理但不合法
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