Who was the American engineer who led the Efficiency Movement of biomechanics in the early 20th century

the french attack on germany was caused by the military alliance

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would not cooperate with each other voluntarily.

no options provided, here,but the answer to this question is often: a historian cites a japanese newspaper article published a year after the end of world war ii in order to draw conclusions about the effect of the war on the japanese economy.

clearly from the answer, the historian alludes to historical sources,and records to aid in analyzing and drawing conclusion on the effect of the war on the economy of japan.