【单选题】The table gives some data on the supply of roses in a small town. When the price rises from $15 a dozen to $25 a dozen, the elasticity of supply is ________. (该表给出了一个关于一个小城镇玫瑰供应的数据。当价格从15美元上涨到25美元时,供...
【判断题】The law of demand states that, other things equal, when the price of a good rises, the quantity demanded of the good rises, and when the price falls, the quantity demanded falls.