考博考试

根据网考网考试中心的统计分析，以下试题在2018/6/5日考博习题练习中，答错率较高，为：89%
【单选题】 In paragraph 2 "leaner variables" and "strategies" are defined by reference to other writers ______.
A．because these writers are authorities in the field and these are recognized as important concepts
B．because these writers are authorities in the field and these are recognized as important definitions
C．because the present author is not sure what these terms mean
D．because the present author wishes to redefine the scope of research in this area

网考网参考答案：B，答错率：89%
网考网试题解析：
由文章可知引用这两个词定义是因为作者是这一领域的专家。所以选B。 查看试题解析出处>>