单选题After the new type o

问题补充：

单选题Afterthenewtypeofricewasintroduced,thefarmersproduced_______ricethisyearaslastyear.A.as twice much asB.twice as much asC.twice much asD.twice as much

答案：

D解析这题考查倍数的表达，“A is+倍数+as+adj+as+B”，句意是：在新型的水稻被引进之后，农民们今年的水稻产量是去年的两倍。