This year the price of rice _____ about twenty percent.

A．was raised

B．has been risen for

C．has risen by

D．has raised to

鹿茸具有的功效是（）

A.补肾阴，益精血

B.补肾阳，益精血

C.补肾阴，祛风湿

D.补肾阳，祛风湿

E.补肾阴，止胎动