After the new technique was introduced, the factory produced cars in 2009 as 10 year before.
A. as twice as many
B. as many twice
C. twice more as
D. twice as many
网友回答
A. as twice as many
B. as many twice
C. twice more as
(答案→)D. twice as many
解析：考查倍数的表达方式。倍数+as+adj./adv.+as.选D。