第13题: [单项选择]From the passage we can infer that real happiness of life belongs to those ______. A. who are higher up in their social status B. who prove better than their fellow-competitors C. who could keep far away from this competitive world D. who are at the bottom of the society 参考答案:C 答案解析:[解析] 第三段最后一句:This constant need to prove...the very causes of unhappiness and illness说明这种需要不断证明自己与竞争