49. What does the author imply about the impact of advertising?
A) It is actually infectious to many rather than a few.
B) It is rooted in our desire for material possessions.
C) It is comparable to that of virus.
D) It is literally limited to children.
（本题出自2023年6月六级真题卷二）
答案&解析：
49.A)
【精析】推理判断题。定位句后半部分提到，由于广告的病毒般的效应，它们只需要感染少数人就可以触动大多数人，可见作者暗示，广告的影响可以由少数而推及大众，A)项是对定位句的转述，故为答案。
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