----My car broke down yesterday on the way to the Yue Lu mountain.

----I am sorry to hear that, but you _______that car every day for ten years before it broke down. Now you really need to buy a new one.

A. have used      B. have been used    C. had used     D had been used

关于施工控制网的局部测量精度与整体精度关系的说法，正确的是（）。

A.各局部单元的精度要求均是一致的，故整体控制网的精度是一致的 

B.虽然单元的精度不_致，整体控制网则是以最高精度要求统一的 

C.对于测量精度要求高的建(构)筑物，其相应的局部控制网精度较高 

D.提高局部控制网精度的目的是为满足提高整体控制网精度的要求