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阅读下列四篇短文，从每小题后所给的A,B,C或D四个选项中，选出最佳选项。 For millions of Facebook users, choosing which photo to use for an online profile is an important decision. According to a study by researchers at the UT Dallas Center, the photos we select may reflect individual preferences, but they also appear to reflect more deeply rooted, unconscious cultural differences.Previous research has shown that culture can affect not only language and custom, but also how we experience the world and process information. Western cultures，for example，condition people to think of themselves as highly independent entities (实体)，whereas East Asian cultures stress collectivism and interdependence. Dr. Denise Park, co-director of the Center at UT Dallas, and former graduate student Dr. ChihMao Huang of the University of Illinois, were curious about whether these patterns of cultural influence extend to cyberspace. In a paper published in the International Journal of Psychology, they examined the profile photographs of more than 500 active Facebook users from the United States a nd East Asia. Overall, they found that profile photos of Americans are more likely to focus on the individual's face，while the profiles of East Asians tend to less emphasize the face and include more background features. Americans also show greater smile intensity compared to East Asian Facebook users. The findings show marked cultural differences in the focus of attention among East Asian and American Facebook users. Moreover, they echo previous research on cultural influences on visual perception(感知），attention, and reasoning in the offline world. | 
