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【单选题】

百菌清是一种非内吸性广谱杀虫剂,对多种植物真菌病害具有()作用。

A.
治疗
B.
保护
C.
预防
D.
铲除
举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【多选题】真菌病害的病状可以有( )

A.
斑点
B.
溃疡
C.
穿孔
D.
癌肿
E.
枯萎
F.
畸形

【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.