◎ 题干
Americans eat____ vegetables per person today as they did in 1990.
[    ]
A. more than twice  
B. as twice as many  
C. twice as many as  
D. more than twice as many
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Americans eat____ vegetables per person today as they did in 1990. [ ]A. more than twice B. as twice as manyC. twice as many asD. more than twice as many…”主要考查了你对  【形容词】【副词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。