Using his hybrid rice, farmers are producing harvests before.
A. as large twice as
B. twice as large as
C. twice larger as
D. as large as twice
网友回答
A. as large twice as
(答案→)B. twice as large as
C. twice larger as
D. as large as twice
解析：考查倍数。倍数结构为：倍数 + as + adj./adv. + as，故选B。