问题详情

We may infer from the second paragraph that_______
A．DNA technology has been widely applied to history research.
B．in its early days the U. S. was confronted with delicate situations.
C．historians deliberately made up some stories of Jefferson"s life.
D．political compromises are easily found throughout the U. S. history.此题为多项选择题。请帮忙给出正确答案和分析，谢谢！