【单选题】If a 15% increase in price for a good results in a 20% decrease in quantity demanded, the price elasticity of demand is
【简答题】表示在元素最前面添加内容的伪元素选择器是
【单选题】P3.下列关于货币数据类型的叙述中,错误的是()。
B.
货币型字段可以与数字型数据混合计算,结果为货币型
C.
向货币型字段输入数据时,系统自动将其设置为4位小数
D.
向货币型字段输入数据时,不必输入人民币符号和千位分隔符
【单选题】无论是在温州市区,还是在桥头、白象镇,你总感到一种异常浓烈的气氛和活力在包围着你,这就是温州特有的商品经济气氛和活力。在温州城乡,你看到千家万户都在从事商品经营,到处有车间、作坊,到处有专业市场、自由市场和零售摊点,到处有大大小小的商品,到处有种类繁多的新产品。几百万温州人不是忙于生产、就是在忙于销售。古代有一幅名画叫《清明上河图》,温州商品经济所展现的图画是现代的《清明上河图》,而它比古画所描绘...
【单选题】If a 15 percent increase in price causes a 30 percent decrease in quantity demanded ,this product might
A.
have no close substitute
D.
be in a short time horizon
【单选题】If a 15 percent increase in price causes a 30 percent decrease in quantity demanded ,this product might
A.
have no close substitute
C.
be part of a broadly defined market
D.
be in a short time horizon
【单选题】If a 20 percent decrease in the price of a good leads to a 15 percent increase in the quantity demanded, then demand is ________ and total revenue will ________ as a result of the fall in price.
【单选题】电路中接有一 50 Ω的电表,它所消耗的功率: