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题库 / OG2016-SC-6
Of all the vast tides of migration that have swept through history, maybe none is more concentrated as the wave that brought 12 million immigrants onto American shores in little more than three decades.
maybe none is more concentrated as
it may be that none is more concentrated as
perhaps it is none that is more concentrated than
maybe it is none that was more concentrated than
perhaps none was more concentrated than
题目分析：
注意原句句首的定语Of all the vast tides of migration that have swept through history，它需要就近修饰一个名词，本题中即主句主语。
选项分析：
A选项：在英语的习惯表达上，表比较时，有more必须有than，而不能是more + as。
B选项：Of all the vast tides of migration that have swept through history修饰的对象是it，在逻辑上，所有移民潮修饰的对象应该是none，而不是it（it也无所指代）；more+as错误同(A)。
C选项：Of all the vast tides of migration that have swept through history修饰对象错误同(B)。
D选项：Of all the vast tides of migration that have swept through history修饰对象错误同(B)。
E选项：Correct.本选项在语法和逻辑上均是正确的。
介词短语在句首可做定语 （也可做状语），去就近修饰主句的主语
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