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(   ) 1. The patent officer dealing with my file explained to me that a plant variety is not a/an       invention as it is a result of adjusting growth scientifically.

A. abrupt    B. favorable    C. practical    D. valid

1. D考查形容词的词义。abrupt突然的,陡峭的; favorable有利的;practical实践的,实际的;valid 有根据的,确凿的,令人信服的。句意:处理我的文件的专利局工作人员解释说,一个植物新品种不是一个有效的发明,因为那是科学地调节植物生长的结果。

题目来源:高考丢分题英语 > Unit 3 Inventors and inventions

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