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【判断题】

1962年美国出版了R.卡逊写的 《寂静的春天》一书,指出 杀虫剂(农药)造成的生态危机,震动了欧美各国。

A.
正确
B.
错误
举报
参考答案:
参考解析:
.
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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.