The house rent is expensive. I've got about half the space I had at home and I am paying ______ here.[ ]

A. as three times much

B. as much three times  

C. much as three times

D. three times as much    

在生产成本费用估算中，总成本费用包含而可变成本中不包含的生产要素有（）。

A.计时工资

B.计件工资

C.装修费

D.折旧费

E.摊销费