After the new machine was introduced, the factory produced _____ in 2011 as the year before.

A．twice as many machines

B．twice many as machines

C．as twice many machines

D．as many machines twice

动态检测试验车检测HTK型外探某探测站Z字板的第一尖峰与第二尖峰的间隔格数偏多，则（）。

A.探头仰角偏高

B.探头仰角偏低

C.探头偏外

D.探头偏里