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After the new technique was introduced, the factory produced _______ tractors in 1988 as the year before.

A. as twice many　　　 B. as many twice　 C. twice as many　　　 D. twice many as

After the new technique was introduced, the factory produced _____ tractors in 1988 as the year before.

A. as twice many                            B. as many twice    

C. twice as many                            D. twice many as

After the new technique was introduced, the factory produced________tractors in 1988 as the year before.

A. as twice many      B. as many twice C. twice as many  D. twice many as

 After the new technique was introduced, the factory produced _______ tractors in 1988 as the year before.
  A.as twice many        B.as many twice        C.twice as many         D.twice many as

After the new technique was introduced, the factory produced________tractors in 1988 as the year before.