Waste heat design and economic analysis of Zhuhai HotelAbstractWith the rapid development of society,the flow of people is increasing,and differenttypes of hotels have been set up ...

新冠疫情对电子商务的影响一以拉丁美洲为例【摘要】新冠肺炎疫情席卷世界各国。疫情影响了许多方面，包括电子商务和数字技术的发展。许多国家也采取了检疫措施措施，由于运输受阻，人员隔离等情...

AbstractFor the agency bookkeeping industry,it is urgent to seek the development,transformation and upgrading of the industry,but the theoretical research that can berelied on in t...

Investigation and analysis on the quality of questions asked by middleschool mathematics teachers--a case study of peiren school in donghai countyAbstract The teacher's question is...

高考理科全国卷数学应用题的若干思考AbstractWith the advancement of mathematics prospect,the employment consciousnessof mathematics knowledge becomes increasingly substantial in math...

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AbstractCongruence is the most important and fundamental method in the two triangleproblems.In addition,in junior high geometry,the study of congruent triangles is akey step in the...

AbstractThis paper mainly analyzes and studies the geometry problems in middleschools from the perspective of the core accomplishment of mathematics.First of all,it introduces the ...

目录引言..1问题的提出1.1研究背景、意义1.1.1研究背景1.1.2研究意义1.2国内外研究现状.…1.2.1国内研究现状1.2.2国外研究现状2思维与数学思维....................2.1相关概念的界定2.1.1思维2...

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