题目内容
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[主观题]
Why does the author mention "the Louisiana Purchase"？A．To demonstrate how the westward exp
Why does the author mention "the Louisiana Purchase"？
A．To demonstrate how the westward expansion of the United States came about.
B．To illustrate Washington"s contribution to the evolution of the United States.
C．To explain why Jefferson was chosen to be one of the presidents on Mount Rushmore.
D．To show why Jefferson"s inclusion on Mount Rushmore was a contentious issu
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