Roger Margotta, the CFO of Brainchild, Inc., is considering several alternative methods of depreciation for long-term assets. With respect to double-declining method of depreciation, which of the following statements is the most accurate（）

A. Current ratio will increase over the life of the asset.  

B. Asset turnover ratio will decrease over the life of the asset.  

C. Return on Investment will increase over the life of the asset.

血友病患者，FⅧ∶C为O.5%（正常对照为98%），FⅧ∶Ag为3%（正常对照为98%），可确诊为（）

A.重型血友病甲

B.重型血友病乙

C.中型血友病甲

D.中型血友病乙

E.轻型血友病甲