摘要：Since its inception,Systems Engineering(SE)has developed as a distinctive discipline,and there has been significant progress in this field in the past two *** to other engineering disciplines,SE is not affirmed by a set of underlying fundamental propositions,instead it has emerged as a set of best practices to deal with intricacies stemming from the stochastic nature of engineering complex systems and addressing their *** the existing methodologies and paradigms(dominant patterns of thought and concepts)of SE are very diverse and somewhat *** appears to create some confusion regarding the design,deployment,operation,and application of *** purpose of this paper is 1)to delineate the development of SE from 1926-2017 based on insights derived from a histogram analysis,2)to discuss the different paradigms and school of thoughts related to SE,3)to derive a set of fundamental attributes of SE using advanced coding techniques and analysis,and 4)to present a newly developed instrument that could assess the performance of systems *** than Two hundred and fifty different sources have been reviewed in this research in order to demonstrate the development trajectory of the SE discipline based on the frequency of publication.

摘要：the teacher themselves. The teacher are too fastidious and stringent which will make the class become a battlefield. Everyone is afraid of speaking during the class. And furthermore, the way which the teacher uses to communicate with student is not suitable. As a common sense, communication is art art, so we should choose the right way to communicate with the child. Furthermore, we need to put more focus on the communication way of teachers, and find out how to let the students communicate in the class. In this short essay, I try to propose some measures to the teacher on this topic of communication in the class.

摘要：With the rapid development of modern Internet technology and the surge in people’s demand for the entertainment industry,the webcast industry has ushered in a golden age of vigorous *** combing the development of China’s webcast industry from the year of 2016 to 2020,this paper points out the problems in the development of the webcast industry and puts forward some solutions,the future development trend of the webcast industry has been forecasted too.

摘要：The gap between teaching and learning can be caused by a lot of factors such as psychological,cultural,and linguistic ones. In different teaching contexts,the influence of these factors may vary differently. Thus,it is necessary for language teachers to take a serious attitude towards the gap between teaching and learning and make appropriate measures accordingly so that they can promote successful teaching/learning outcomes in the language classroom.

摘要：In modern green land planning, it should highlight the application of native plants and the construction of urban three-dimensional greening. By taking green land reconstruction of Yangliu River of Wenjiang City as an example, the site condition and design concept have been analyzeds; and furthermore, reconstruction schemes have been explained in detail based on five themes. It has emphasized composing landscape based on sections, enriching plant levels, improve forest canopy line and enrich tour space. Plants on green lands can be moved, adjusted, transformed, added and supplemented.

摘要：In software engineering, software measures are often proposed without precise identification of the measurable concepts they attempt to quantify: consequently, the numbers obtained are challenging to reproduce in different measurement contexts and to interpret, either as base measures or in combination as derived measures. The lack of consistency when using base measures in data collection can affect both data preparation and data analysis. This paper analyzes the similarities and differences across three different views of measurement methods (ISO International Vocabulary on Metrology, ISO 15939, and ISO 25021), and uses a process proposed for the design of software measurement methods to analyze two examples of such methods selected from the literature.

摘要：Landscape design principles for residential districts were analyzed in this study,it was stressed that local features should be demonstrated,actual conditions of the site respected;functional demands of residential districts should be clarified;landscape designs and architectural designs should be organically combined;central landscapes should be highlighted,sense of hierarchy and enclosure created;human-concerned and ecological principles should be *** this basis,landscape design techniques for residential districts were discussed from the perspectives of artistic conception and plant *** terms of plant furnishing,spatial processing,linear changes and changes of seasonal aspects were emphasized,and plants with environmental and economic benefits were *** doing this,this study aimed at contributing to the future planning and construction of residential districts.

摘要：Change in approaches to vocabulary teaching and learning is widely advocated in China's EFL teaching. An experimenton teaching vocabulary in lexical approach has been carried out among freshmen in China University of Political Science and Law. This paper gives a report on a survey of students' attitudes toward lexical approach to teaching and learning as well as strategies used to discover and consolidate phrases and expressions, which provides practical and meaningful experience to lexical teaching.