问题如下：
Which of the following discriptions of denominator of the GDP price deflator is molst likely correct:
选项：
A.the value of base year output based on current prices.
B.the value of current year output based on year prices.
C.the value of current year output based on current prices.
解释：
B is correct.
考点： GDP deflator
解析：依据GDP平减公式，可以直接算出答案B
GDP deflator = Value of current year output at current year prices/ Value of current year output at base year prices ×100
选项B写错了吧？表达基年价格用year price？
