Theo bạn tại sao trong nền kinh tế thị trường định hướng xã hội chủ nghĩa ở Việt Nam phải tồn tại nhiều thành phần kinh tế trong đó các chủ thể thuộc các thành phần kinh tế bình đẳng, hợp tác, cạnh tranh cùng phát triển theo pháp luật?

As a result of the work of the house un-american activities committee, hundreds of people were

The california gold rush: actually had only a small impact on california’s population because its rich farmlands already attracted thousands of new settlers each year. attracted almost equal numbers of men and women. resulted in laws that discriminated against “foreign miners.” made considerable wealth for average miners because gold mining demanded no real investment of capital. hurt the development of san francisco because gold discoveries shifted interest to areas outside of town.

Which of the following inventions most directly allowed ancient farmers to produce a surplus ?