I'm not sure but extract is a synonym of abstract
a. Poor transportation networks left troops ill-equipped on the front lines
Russia had more soldiers than any other country but their infrastructure was not well built leaving the front line with few resources. Troops were often left without food, clothing, and weapons. Russia was behind in industrialization and the railroads were not well developed. It left soldiers stranded on the front lines.
In addition, the leadership of Russia was weak and unable to understand the devastation of the war. The lack of preparation and high level of death would turn into a revolution causing Russia to leave World War I sooner than the remaining Allies.
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The pandemic should be remembered as one of the worst outbreaks in American history.
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The Silk Road of ancient China is an example of cultural diffusion <em><u>occurring at a result of a trade.</u></em> Although the route began in about 138 B.C. as a means for China to export silk fabric -- a rare and valuable commodity -- trade along the Silk Road greatly promoted the exchange of products, ideas and practices between Oriental and Western civilizations.
