GWD25上有问题的还真多．．有讨论过，但未果．

Q10

     The sides of a square region, measured to the

         nearest centimeter, are 6 centimeters long. The

         least possible value of the actual area of the

         square region is

A.36.00 sq cm

B.35.00 sq cm

C.33.75 sq cm

D.30.25 sq cm

E.25.00 sq cm

我觉得是选Ｄ，５．５＊５．５　　但是答案选Ｃ，我想破脑袋都不知道这是怎么来的．．．