After the new type of rice was introduced, the farmers produced _____ rice this year as last year. [      ]

A. as twice much as  

B. twice as much as 

C. twice much as

D. twice as much  

《中 * * 关于全面推进依法治国若干重大问题的决定》指出，对决策严重失误或者依法应该及时作出决策但久拖不决造成重大损失、恶劣影响的，要建立（）机制。

A.责任人

B.首长及责任人负责

C.重大决策终身责任追究制度及责任倒查

D.首长负责