在提出的同时还提出了Online Sopping System(网上购物系统)和Online Store System(网上商店系统)
D.
B2C 网上商城也称网上商城购物系统
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举一反三
【单选题】According to the National Bureau of Economic Research, the U.S. economy is going through a severe recession. Most households are trying to save more of their income than before. This increase in priva...
A.
an increase in aggregate income as more saving means more funds for business investment.
B.
a fall in aggregate income as more saving means people will spend less.
C.
no change in aggregate income because there is no saving multiplier.
D.
an increase in aggregate income as an increase in saving will make people wealthier.