NO.PZ2016010801000046
问题如下：
Which of the following is not a correct approach to calculate GDP for a given country within a given time?
选项：
A.Sum the market value of all purchases and sales occurred in the country in that period of time.
B.Sum the market value of all final goods and services produced in the country in that period of time.
C.Sum all the income earned by households, companies, and government in the country in that period of time.
解释：
A is correct.
GDP can be measured with expenditure approach (B) and income approach (C). The summation of market value of all purchases and sales will double account those sales of intermediate goods.
考点：GDP核算
解析：国内生产总值可以用支出法和收入法来衡量，B和C选项正确。
但是如果把所有购进和销售的市场价值加总，就会使这些中间产品的销售重复计算。所以A选项的说法错误。
为啥不选A
