The research,led by Robin Dunbar,head of the Institute of Cognitive and Evolutionary Anthropology at Oxford University, showed t

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问题     The research,led by Robin Dunbar,head of the Institute of Cognitive and Evolutionary Anthropology at Oxford University, showed that men and women were equally likely to lose their closest friends when they started a new relationship.
    Previous research by Dunbar’s group has shown that people typically have five very close relationships—that is,people whom they would turn to if they were in emotional or financial trouble.
    "If you go into a romantic relationship,it costs you two friends. Those who have romantic relationships, instead of having the typical five ’ core set’ of relationships only have four. And of those,one is the new person who’s come into their life," said Dunbar.
    The study,submitted to the journal Personal Relationships, was designed to investigate how people trade off spending time with one person over another and suggests that links with family and closest friends suffer when people start a romantic relationship.
    Dunbar’s team used an Internet-based questionnaire to quiz 428 women and 112 men about their relationships. In total,363 of the participants had romantic partners. The findings suggest that a new love interest has to compensate for the loss of two close friends.
    Speaking at the British Science Festival in Birmingham,Professor Dunbar said: "This was a surprise for us. We hadn’t expected it. If you don’t see people, your emotional engagement with them drops off and does so quickly. What I suspect is that your attention is so wholly focused on the romantic partner you don’t get to see the other folks you had a lot to do with before, and so some of those relationships start to deteriorate. "
    The questionnaire allowed people to mention whether any of their closest confidants (知己) were "extra romantic partners". In all,32 of those quizzed mentioned having an extra love interest in their life ,but these people did not lose four friends as might be expected. Instead,the extra person in their life bumped their original romantic partner out of their innermost circle of friends.
    In a separate study, Dunbar’s team looked at how men and women maintained friendships on the social networking website Facebook. They found that women’s Facebook friends were more often friends from everyday life that they spent time with, while men tended to collect as many friends as they could, even if they hardly knew them.
    "Boys seem to be in a competition to see who can have the most Faccebook friends and that could be a form of mate advertising. One of the cues women use for male quality as a mate is the number of other girls chasing them,so signing up lots of girls as Facebook friends seems to be a good idea," said Dunbar.
According to Professor Dunbar,the findings of the study suggest that______.

选项 A、the result is the same as they have originally expected
B、people are getting less emotional engagement with friends
C、romantic love is obtained at the cost of losing two close friends
D、friendships will not deteriorate if people leave their partners

答案C

解析 事实细节题。本题考查研究的结果。第五段中指出邓巴是如何进行研究的,并指出研究的结果表明了恋情必须以失去两个亲密的朋友为代价。故C)为答案。A)“结果与他们预想的相同”,第六段第一句话指出,这一发现结果令人惊讶,故排除;B)“人们给予朋友的感情在减少”与此项研究结果无关,故排除;D)“如果人们离开自己的情侣,朋友关系就不会恶化”,文中未提及,故排除。
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