庖丁解牛3-12中

壹世，唇齒相须

本练习出自《考研英语不读胜读》
问题：3.What the researchers have observed recently shous that___
A. the power of influence goes with social interactions
B. interpersonal links can be enhanced through the media
C. influentials have more channels to reach the public
D. most celebrities enjoy wide media attention
解析：细节题，首先定位。根据recently，我们判断出本题处在第三段的In their recent work……。题干中还有一个重要的词observe。。通过这个词可以进一步定位，答案肯定在第四段。“Yet it is precisely these non-celebrity influentials who,according to the two-step-flow theory,are supposed to drive social epidemics,by influencing their friends and colleagues directly”。也就是说，影响力的传递是通过人与人之间的一层层的互动（interaction）实现的.故选A。