ObjectiveTo study the application of three dimension dynamic multimedia in teaching ofmechanismoflabor in obstetrics.
目的研究三维动态多媒体课件在产科分娩机制课堂教学中的应用。
2
This paper expounds, through comparison and analysis, the operating mechanismoflabor income tax credit and further discusses the incentive effect of labor income tax credit on social aid.