我们可以享受瑞士生产的咖啡,购买法国的时装是因为物流过程增加了产品的()
A、时间效用
B、空间效用
C、信息效用
D、品种效用
参考答案:B
—What a heavy rain!
—So it is. I prefer ________ instead of _______ on such a rainy day.
A.to go out; stay at home
B.to stay at home; go out
C.to go out; staying at home
D.staying at home; going out
试述古巴比伦的空中花园为何被研究所重视?