【单选题】A government imposes a specific indirect tax on a product. When will the tax cause the greatest reduction in consumer surplus for the buyers of the product?
A.
The product has price elastic demand and price elastic supply.
B.
The product has price elastic demand and price inelastic supply.
C.
The product has price inelastic demand and price elastic supply.
D.
The product has price inelastic demand and price inelastic supply.
【单选题】商周时期,手工业技术已达到相当高的水平,其中最具代表性的是( )
【单选题】下面的射线探测器不需要在液氮温度下工作的是( )。
【判断题】A 30% reduction in product and service variety won't really affect the efficiency of a supply chain.