47. What does the author mean by "diffusion of responsibility" (Line 4, Para.3)?
A) The more people are around, the more they need to worry about their personal safety.
B) The more people who witness an event, the less likely anyone will venture to participate.
C) The more people idling around on the street, the more likely they need taking care of.
D) The more people are around, the less chance someone will step forward to intervene.
（本题出自2024年6月六级真题卷一）
答案&解析
47.D）
第三段第四句提到了“责任分散(效应)”,它的具体含义需要回溯上文。本段第三句提到了旁观者效应，即目睹事件的人越多，这个群体中就越没有人愿意帮助受害者。第五句对“责任分散(效应)”进一步解释：这个群体的人数越多，人们就越认为会有其他人来处理这件事。由此可知，D项符合题意。其他三项均与原文不符，故排除。
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