【单选题】In my hometown, the old over 100 years old __ not only by their family but also by the government . A. B. good care of C. is taken good care of D. are take good care of
D.
are taken good care of
【单选题】The cross elasticity of demand for good X with respect to the price of good Y is negative. Good X is a normal good and good Y is an inferior good. The supply of good X is perfectly elastic. A rise in ...
D.
initially raise and then lower
【单选题】无人机系统飞行器平台使用的是 空气的动力驱动的航空器。
【单选题】The marginal benefit of a good is a measure of
A.
the price of the good.
C.
how much a consumer values another unit of the good.
D.
the total utility that the consumer gets from the good.