题目

It was not until the subprime loan crisis(次贷危机) ____ great damage to the American financial system that Americans ____ the severity of the situation. A. caused, realized                                    B. had caused, realized C. caused, had realized                               D. was causing, had realized 答案：B 解析: 略“爱情已从家庭关系的外沿变成它的首要的正当的核心”……相对于前工业化时代因经济关系，或为生存而组成的家庭来说，无疑是一种历史的进步。据此说明工业革命后( )A．社会分工渐趋细化B．平等观念日益加强C．社会分配日趋合理D．家庭稳定性逐渐提高