1、经济学《考试学习指导》（王效瑞编）模拟题一（第273页）question 4:

The supply curve of an enterprise is P=5Q+2. demand curve is p=-3Q+18.

(2) if the government levies $1 for each product from the producer, how will the equilibrium price and quantity change? How will the tax burden be shared between the enterprise and the consumer?

答案中：“if the government levies $1 for each product from the producer, the supply curve will become p’=5Q’+3 and the demand curve is still

P’=-3Q’+18.” 的“p’=5Q’+3”是怎么的来出得？政府加税和补贴，对供给和需求曲线的影响反映到相应方程式里是什么样的？请高手赐教，感激之至！

另沈素萍编〈模拟题〉经济学第一套模拟题第4题（第3页）也是这种类型的题，大家应该注意以下，欢迎讨论。

2、经济学《考试学习指导》模拟题一（王效瑞编）（272页）if a peasant enlarges his cultivating area and makes a good harvest, his income will----

A.increase B decrease C be uncertain

答案为A,为什么？我选的是C,好收成不一定增收啊

3、经济学《考试学习指导》模拟题一（王效瑞编）（270页）question 5 是具体怎么确定“他怎样才能挣最多的钱”的呢？

4、沈素萍编〈模拟题〉经济学第一套模拟题question 1(6)how much is the present value of a property paying $300 per year if the interest rate is 6%? A $300 B $283.01 C $319.15 D $5000 答案D