The rents here are not_____to the students living on grants.

A、comfortable

B、accessible

C、available

D、affordable

施工控制網分為平面控制網和高程控制網兩種。()

此題為判斷題(對，錯)。

The district_____the experiment was carried out was the area watered by Tennessee River in the U.S.A.

A、that

B、which

C、where

D、of which

地面上地物和地貌的特征點稱為圖根控制點。()

此題為判斷題(對，錯)。