下列内容中，标志着我国世袭制开始的是[ ]
A、禹传子，家天下
B、禹传位给伯益
C、启打败了有扈氏
D、舜传为给大禹
答案：A
Most of us know we should cut down on fat, but knowing such things isn’t much help when it shopping and eating.
A．refers to
B．speaks of
C．focuses on
D．comes to
扩展插槽
