Theo quan điểm của chủ nghĩa duy vật lịch sử, muốn xoá bỏ một quan hệ sản xuất cũ, thiết lập một quan hệ sản xuất mới phải căn cứ từ

What led to the environmental damage that caused the dust bowl? 1. desert winds emerging from the southwest 2. rotating crops every year and having fallow land 3.overplanting throughout the great plains 4.a year-long drought

What changes did japanese militarists make when they came to power?

Washington said that the united states would be "friendly and impartial" in regard to foreign conflict. what was his reason behind this statement? a jefferson and washington had determined the u.s. was too weak to wage war. b the u.s. had a treaty with both england and france, and was thus required to remain neutral. c france asked for the united states to stay out of the war, due to trade relationships. d a special envoy from england asked for strict neutrality on behalf of the united states.