论文部分内容阅读
说明:选对得4分,选错得-1分,不选得0分其中“*”表示“以上全不对”。 1.内接于半径为1的正方形的面积是( ). (A)2 2~(1/2) (B)2~(1/2) (C)2 (D)4 (E)* 2.8~(1/2)+18~(1/2)-12~(1/2)=( ).
Explanation: 4 points for the election, 1 point for the wrong election, 0 points for no election, where “*” means “above all wrong.” 1. The area of a square inscribed in radius 1 is (). (A)2 2~(1/2) (B)2~(1/2) (C)2 (D)4 (E)* 2.8 ~(1/2)+18~(1/2)-12~(1/2)=( ).