Research on the construction of elderly care service system in the new era 并列题名:Research on the construction of elderly care service system in the new era Research on the construction of digital ideological and political system in the new era Research on the construction of modern state governance system in China Research on the construction of people's city in the new era Research on the construction of rural governance system in China Research on the reform direction of China's medical security system in the new era Research on the construction of ecological civilization of China in the new era Research on the construction of trade power led by innovation in the new era On the construction of long-term care service system in China