The task of psychology is to discover the laws of mental structure.
经济变革的过程在很大程度上是路径依赖的。
对较大收入征收较高比例的税收,等于对工作和节俭征收了一项税收;对人们因为工作更努力、储蓄更多而征收罚款。
Technological innovation is the core driving force for the high-quality development of the petroleum industry. We must increase R&D investment and break through key core technologies.