The most important advantage of northeast china that mainly contributed toward its being the industrial and technological center of the country in the 1970s and 1980s is:

some american cities felt workers were being oppressed by business monopolies

answer: ensure protection from communism

explanation:

the north atlantic treaty was largely dormant until the korean war initiated the establishment of nato to implement it, by means of an integrated military structure: this included the formation of supreme headquarters allied powers europe in 1951, which adopted the western union's military structures and plans.