单选题
After the new technique was introduced, the factory produced ______tractors this year as the year before.
A、
as twice many
B、
as many twice
C、
twice as many
D、
twice many as
【正确答案】
C
【答案解析】
解析：本题考查倍数表达法。根据选项可知，本题采用的是“…times＋as＋形容词／副词的原级＋as…”结构，tractors是可数名词，用形容词many修饰。句意为：引进新技术后，工厂今年生产的拖拉机数量是前一年的两倍，故选[C]项。
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