137. A study of marital relationships in which one partner's sleeping and waking cycles differ from those of th e other partner reveals that such couples share fewer activities with each other and have more violent arguments than do couples in a relationship in which both partners follow the same sleeping and waking patterns. Thus, mismatched sleeping and waking cycles can seriously jeopardize a marriage. D. people in unhappy marriages have been found to express hostility by adopting a different sleeping and waking cycle from that of their spouses. 我做时能够用排除法选出D。可仔细研究选项时,好象觉得D虽然有关却没有起到削弱的作用啊。好象自己在读句子的时候对于句意的把握有些问题。 诸位帮忙分析一下D选项吧,谢谢咯