The great partybuilding spirit is a valuable spiritual treasure of the Chinese civilization and human civilization. To Chinese civilization， the great partybuilding spirit is the spiritual declaration of the Chinese nation from being passive to being active， the genetic code of the worlds centuryold party， and the spiritual impetus for building the modern civilization of the Chinese nation; to world civilization， the great partybuilding spirit is the spiritual wealth of the community of human destiny， the spiritual code of the common values of all mankind， and the spiritual high ground of the new form of human civilization. Chinese discourse is the ideological expression and value presentation of the international dissemination of the great partybuilding spirit， and it is necessary to construct the Chinese discourse of the great partybuilding spirit in terms of discourse source， discourse condensation， discourse dimension， discourse translation and other aspects. To enhance the influence of the communication power of the great partybuilding spirit and comprehensively improve the effectiveness of the international communication of the great partybuilding spirit， it is necessary to realize communication innovations in terms of communication content， communication carriers， communication techniques and communication methods.

Adhere to the people first is not only one of the important historical experience of the Communist Party of China， but also an important manifestation of its insistence on historical initiative. It is precisely because of always adhering to the lofty concept of the people first that the Communist Party of China has continuously led the Chinese people to achieve a welloff society in an allround way on the land of China， opened a new journey of building a modern socialist country in an allround way， and created one miracle after another. In the process of always adhering to the supremacy of the people， it highlights the lofty ethical care of the Communist Party of China that has always been concerned about the people， mainly including the lofty concept of goodness and always putting the people in a lofty position. With the lofty value of good， it always adheres to all the peoplecentered lofty standards. With the lofty system of good， it constantly builds and improve the peoples master of the noble system. With noble practice of good， it strives to practice the lofty mission of leading the people to a better life in labor.

Promoting the modernization of Chinese agriculture and rural areas under the vision of common prosperity is a strong response to the practical needs of building a modern socialist country in an allround way， and is of great significance to solving the problem of rural revitalization， promoting the highquality development of agriculture and rural areas， and the allround development of people. To promote the modernization of Chinese agriculture and rural areas in the new era， there are prominent problems such as the urgent optimization of the agricultural development model， the further play of the main role of farmers， the imperfect rural governance system， and the large income gap between urban and rural residents. Based on Chinas national conditions， adhering to the socialist development direction of common prosperity with Chinese characteristics， and exploring the Chinese model of agricultural and rural modernization， we must focus on optimizing the agricultural development model， establish the concept of rural cocreation， improve the mechanism of farmers main role， continue to improve the modernization system of rural governance， build a modernized urbanrural relationship， and gradually narrow the urbanrural income gap and continuously improve the sense of gain and happiness of farmers.

Balancing scientific and technological development with scientific and technological security is a major task entrusted by the new era， and it is also an urgent requirement to promote selfreliance in highlevel science and technology and comprehensively build a modern socialist country.We comprehensively deepened the reform of the science and technology system in terms of institutional mechanisms， and strengthened risk assessment and response in the field of cuttingedge science and technology in terms of risk management， leading Chinas science and technology cause to achieve historic， overall and major changes in the pattern. Overall planning of science and technology development and science and technology security has become a relatively complete scientific theoretical system， rich in connotation and profound thinking， with profound theoretical logic， historical logic and realistic logic， is a high degree of unity between theory and practice， history and reality. In theory， the inheritance， enrichment and development of Marx and Engels on science and technology is the productive forces and technology alienation thought， and in practice， it effectively improves the independence， independence and safety of our development， and provides an important compliance for the construction of our country into a world science and technology power.

Since the reform and opening up， researches on the development of Chinas highspeed rails under the leadership of the CPC have gradually entered the academic field， and has received more and more attention. Domestic scholars have discussed on the key decisions， historical stages， major achievements， significant contribution， basic experiences， and practical implications of highspeed rails development， and have made many progresses in data collection and research objects， which provides important references for us to study its history and experiences.The current researches also have shortcomings such as weak “general history”， insufficient theoretical elaboration， scattered basic literature， and insufficient experience mining， which have become important issues for us to face in further research.

This paper researches the development of crossborder railway transport in recent years and analyzes the markets demand for reform of railway transport documents. By analyzing the basic characteristics of railway bill of lading and its practice and function in crossborder railway transport， the paper believes the railway bill of lading is an innovative mode which can meet the requirements of financing and document circulation of the railway transportation enterprises. However， the railway bill of lading in practice has such problems as lacking interpretation of international conventions and domestic laws and regulations， single method of financing and settling accounts，and ineffective cargo control. In view of the above problems， this paper gives the corresponding solutions， namely， add relevant content of railway bill of lading to international railway transportconventions， issue relevant national laws and regulations on railway bill of lading， innovate new financing methods related to railway bill of lading， introduce the use of electronic bill of lading， use blockchain technology to build network monitoring system， encourage and promote qualified NVOCC to participate in signing the railway bill of lading， innovate the function of releasing goods in batches on railway bills of lading， and promote more cities to practise railway bill of loading and other suggestions and opinions.

Under the “dual carbon” goal， it is the general trend for the logistics industry to achieve green and highquality development， and the “14th FiveYear Plan” modern logistics development plan points out that it is necessary to promote the green and lowcarbon transformation of logistics enterprises. By integrating the TOE framework， this paper takes 42 listed logistics enterprises as a sample， uses the fsQCA method to study the configuration paths of logistics enterprises to generate high green performance and nonhigh green performance， and analyzes the driving and inhibiting paths of threefold factors affecting the green performance of listed logistics enterprises. The results show that in achieving the high green performance of listed logistics enterprises， market competition has the most significant positive effect on promoting the green performance of listed logistics enterprises， followed by corporate green behavior. The conclusions of this study provide a theoretical reference for logistics enterprises to improve their green performance， and promote the improvement of green performance Level of logistics enterprises.

In the context of actively implementing the national strategy of population aging and promoting the overall construction of digital China， allowing more older people to adapt to the transformed life and enjoy digital welfare， the issue of digital integration of older people is undoubtedly a key topic in the coming period. Based on the social support theory， this paper utilizes the CGSS2017 data to conduct a study to classify digital integration into three dimensions， namely cognitive， skillbased and applied digital integration， and to explore the influence of informal support on the digital integration of the elderly on this basis. The results show that informal support from oneself significantly and positively affects the cognitive digital integration of middleaged and highaged seniors， informal support from children significantly and negatively affects the skillbased digital integration of lowaged seniors， and informal support from peers significantly and positively affects the applicationbased digital integration of lowaged seniors. Based on this， we propose to deepen the supply of Internet resources， promote the ageing and accessibility transformation of online and offline digital products and services， emphasize the power of peer groups， and encourage digital feedback， with the aim of providing a close and efficient social support system for the digital integration of the elderly， and accelerating the overall construction of digital China.

Based on the data of Chinas Ashare agricultural listed companies in Shanghai and Shenzhen from 2012 to 2021, the effect of government subsidies on the investment efficiency of agricultural enterprises is examined. It is found that government subsidies can effectively enhance the investment efficiency of agricultural enterprises, in which the effect of R&D subsidies is better than that of nonR&D subsidies.Overinvestment suppresses the positive incentive of government subsidies on the investment efficiency of agricultural enterprises. There exists a threshold value of government subsidies on the investment efficiency of agricultural enterprises regarding capital intensity, which is a positive incentive when the capital intensity of agricultural enterprises is over the threshold, and a negative inhibition when capital intensity is below the threshold. Financing constraints diminish the effect of government subsidies as well as nonR&D subsidies on the investment efficiency of agricultural enterprises and prevents a significant correlation between R&D subsidies and the investment efficiency ofagricultural enterprises.

The Guangxi Pingle Daoxiang Academy is a microcosm of numerous academies in the border provinces in the Qing dynasty. It reflects the local cultural construction and the value pursuit of the scholars in the southwestern border provinces in the Qing dynasty. Confucianism took precedence, with a special emphasis on the moral power of “lifelong moral education” and “establishing morality and cultivating people”. Secondly, the goal of the local officials and the head of the academy to educate talents had a strong value orientation of the world, hoping the talents chosen through the imperial examinations to achieve the urgent task of governance and salvation of the world. Finally, the elegant life of the scholars in their spare time for political affairs and lessons led the fashion of the place, and together they built and passed on the cultural tradition of “the rise of the humanities”.

Linguistic landscape constitutes the spatial connotation of language, i. e. the multidimensional and multidirectional carriers based on interdisciplinary perspectives. The study of linguistic landscape interprets such spatial connotation of language in a broad sense. The researches on linguistic landscape started in the 1970s and were then introduced to China. With the mature development of its methodology and research paradigm, the study of linguistic landscape has developed as an interdisciplinary subject. The research perspective of this discipline is universally diverse. The research questions are multidimensional, and the methodology of research is multidirectionally mixed. Its development trend shows the interdisciplinary integration. On the applications of the current theoretical views, there is room for various indepth aspects from dynamic levels such as views of macromicro, cultureeconomy, especially in relation to the linguistic situations in China.