How many diseases are known to attack wheat? What is the main idea of the second paragraph?

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问题 How many diseases are known to attack wheat?
What is the main idea of the second paragraph?

选项 A、Some plants have relative immunity to a great many diseases, while others have a susceptibility to them.
B、The tolerance of a particular plant changes as the growing conditions change.
C、A blight killed virtually every chestnut tree in North America.
D、A blight may be a national infection.

答案A

解析该题问“第2段的主要大意是什么?”抓住该段的段首句(段首句往往是主题句)。A的表述方式及内容与该段的段首句一致。

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本试题收录于：职称英语卫生类A级题库职称英语分类

职称英语卫生类A级

职称英语

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How many diseases are known to attack wheat? What is the main idea of the second paragraph?

职称英语卫生类A级

职称英语

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我国现行的规定是，各类企业都可参与股票配售，也可投资于二级市场的股票。(　　)