若二維數(shù)組arr[1..8,1..6]的首地址為base,數(shù)組元素按列存儲,且每個元素占用4個存儲單元,則元素arr[5,5]在該數(shù)組空間的地址為( )。A.base+(4*8+4)*4 B.base+(5*8+5)*4 C.base+(4*6+4)*4 D.base+(5*6+5)*4