2. 考研
  3. By citing the book The Tipping Point, the author intends to ______. The author suggests that the "two-step-flow theory" ______.

By citing the book The Tipping Point, the author intends to ______. The author suggests that the "two-step-flow theory" ______.

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问题 By citing the book The Tipping Point, the author intends to ______.
The author suggests that the "two-step-flow theory" ______.
选项 A、serves as a solution to marketing problems.
B、has helped explain certain prevalent trends.
C、has won support from influentials.
D、requires solid evidence for its validity.
答案D
解析 本题是事实细节题。定位点在原文第二段尾句：Anecdotal evidence of this kind fits nicely with the idea that only certain special people can drive trends．这句话说这些证据都是“轶事性”的，证明作者认为这个理论缺乏坚实的证据。其他选项均为原文没有提到的新信息。
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考研英语一

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