单选题
If a cube has a volume of 125, what is the surface area of one side? A. 5 B. 25 C. 50 D. 150 E. 625
【正确答案】
B
【答案解析】The length of a side of a cube is the cube root of its volume; the cube root of 125 is 5. The area of a side is the square of its length, so 5×5=25.