问题如下图：
选项：
A. 
B. 
C. 
解释：
请问这道题是啥意思？截距项不就是劳动和资本增长率为0时的Gdp增长率吗？
NO.PZ2016010802000114问题如下economic forecasting firm hestimatethe following equation from historicta baseon the neoclassicgrowth mol:Potentioutput growth = 1.5 + 0.72 × Growth of labor + 0.28 × Growth of capitalThe intercept (1.5) in this equation is best interpreteas:A.the long-run sustainable growth rate.B.the growth rate of totfactor proctivity.C.above trenhistoricgrowth this unlikely to sustaineis correct.The estimateequation is the stanrSolow growth accounting equation. The intercept is the growth rate of totfactor proctivity.考点TFP解析本题直接考察TFP的表达形式，它的增长在公式中表示为方程的截距项。请问这是哪里的知识点？对应笔记版讲义第几页？
NO.PZ2016010802000114 问题如下 economic forecasting firm hestimatethe following equation from historicta baseon the neoclassicgrowth mol:Potentioutput growth = 1.5 + 0.72 × Growth of labor + 0.28 × Growth of capitalThe intercept (1.5) in this equation is best interpreteas: A.the long-run sustainable growth rate. B.the growth rate of totfactor proctivity. C.above trenhistoricgrowth this unlikely to sustaine is correct.The estimateequation is the stanrSolow growth accounting equation. The intercept is the growth rate of totfactor proctivity.考点TFP解析本题直接考察TFP的表达形式，它的增长在公式中表示为方程的截距项。 growth in technology 就是全要素生产率吗？请不要直接截图讲义，我知道在讲义中什么地方，但是想跟理解其逻辑，谢谢。
请问1.5反应的是技术水平的话 为什么选B？
the growth rate of totfactor proctivity. above trenhistoricgrowth this unlikely to sustaine B is correct. The estimateequation is the stanrSolow growth accounting equation. The intercept is the growth rate of totfactor proctivity. 考点TFP 解析本题直接考察TFP的表达形式，它的增长在公式中表示为方程的截距项。 请问A怎么理解？
明白这道题是考察growth in potentiG,只是这个与totfactor proctivity有什么关系呢？
