单选题
Americans eat ______ vegetables per person today as they did in the 1960s.
A、
more than twice
B、
as twice many
C、
twice as many
D、
more than twice as many
【正确答案】
C
【答案解析】
[解析] 本题考查倍数表示法。表示倍数的结构通常为:倍数+as+adj.+as,故选C。句意为:现今,平均每个美国人食用的蔬菜量是他们20世纪60年代的两倍。
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