—What’s the area and population of the US？—The US is about the same size as China but its

问题补充：

—What’s the area and population of the US？

—The US is about the same size as China, but its population is five times .

A. smaller B as little. C. as few D. bigger.

答案：

解析：考察形容词的倍数表达法和固定搭配，因为population 的大小比较用small 或big 。故其他选项不合适。