2023八年级英语综合能力提升电子刊物答案

2023八年级英语综合能力提升电子刊物答案，目前大联考答案网已经汇总了2023八年级英语综合能力提升电子刊物答案的各科答案和试卷，更多全国100所名校答案请关注本网站。

【答案】C【解析】因为2 bcos B=acos C十ccos A,由正弦定理可得2 sin Bcos B=sin Acos C十sin Ccos A=sin(A C)=5inB,又0

【语篇导读】本文是一篇说明文。文章介绍了5G技术的发展给旅游行业带来的运作方式上的改变。l6.A根据上文It promotes operational cooperation tourism hasn't experienced before,及下文This is perceivedfrom both the way the industry operates and the side of the traveler.可推知，空处应该是讲5G给游客带来的改变。故A项承上启下，符合语境。17.F It's expected to offer organizations a wireless network that transforms the way people andmachines use data...and eventually integrate the billions of Internet of Things devices and data that areavailable.可知，本段的主旨是在讲5G在通信方面带来的改变。故F项能够概括本段主旨。l8.B根据上文As travel companies have transformed,passenger experiences driven by the technology.及下文Withadvanced connectivity speeds.provide meaningful experiences,.可推知，先进的连接速度与低延时数据是5G网络具有的优点，这使5G技术能够支持旅游公司的转变。故B项与上下文衔接紧密，符合语境。19.E For example,guests can involve themselves in viewing rooms and hotel facilities,or previewlocal attractions as they plan their trips.可知，空处应该是讲客人可以用网络技术提前体验旅游地。故E项引起下文，符合语境。20.G To prepare to roll out this new technology,travel companies should ensure they have a thoroughunderstanding of their guests'expectations on what makes a first-rank travel experience..可推知，下文应该是旅游公司在了解客人对旅游体验的期望后应该采取的措施。故G项承接上文，符合语境。