问题如下：
Economic data of a country is showed below:
According to the economic data, which of the three counties most likely rely on the capital deepening?
选项：
A.Country X.
B.Country Y.
C.Country Z.
解释：
A is correct.
考点：Cobb-Douglas production function 的变形公式
解析：先写出变形公式：
Growth rate of labor productivity= Growth rate of TFP+ Growth rate of capital deepening（假设劳动力恒定不变）
capital deepening%=△y/y-△T/T
X=2.6-0.8=1.8
Y=1.8-1=0.8
Z=1-(-0.1) =1.1
请问为什么不能用第二个变形公式？其中Y,T,L的变化率都有数据可以计算。例如country x=3.5-0.8-2.1=0.6
谢谢！
