论文部分内容阅读
互为替代品、互补品的两种商品价格变动的趋势描述、需求变动的趋势描述及价格与需求制约变动的趋势描述,一直是困扰高一学生的一个难点问题。为解决这一难点问题,也为了让学生更直观形象地理解这一问题,笔者运用和我们生活息息相关的液化气和生活用电这两种替代品,汽车和汽油这两种互补品,来说明替代品、互补品“三个变动”的趋势描述。
The description of the trend of two commodity price changes, the description of the trend of the demand change and the trend description of the price and the demand restriction change have been one of the difficult problems plaguing the freshmen. In order to solve this difficult problem and also to make students understand the problem more intuitively and vividly, the author uses the two kinds of substitutes of liquefied gas and domestic electricity which are closely related to our life, and the two complementary products of automobile and gasoline Alternatives, Complements “Three Changes ” Trend Description.