With prices rising sharply, we now have to spend _______ three months ago on basic living materials.

A．as twice much as

B．twice as much as

C．twice as more than

D．twice as many as

麻痹性痴呆病理变化，不正确的是（）

A.涉及范围广泛，性质复杂

B.仅侵犯大脑实质和脑膜

C.以炎性及变性改变为主要特征

D.病变程度以额叶最为显著

E.大脑皮质中可发现游离铁质沉着和螺旋体