问题
单项选择题
What is the perimeter of a square with area 
？（）
A.A
B.B
C.C
D.D
E.E
答案
参考答案：C
解析：
The area of a square is the square of its sides, so one of the sides of this square is 
. The perimeter of a square is its side times 4, so the perimeter is 3P.