陈毅是新中国的开国元勋之一，为新民主主义革命的胜利作出重大贡献。1928年4月，陈毅与____率领军队到达井冈山，与***领导的军队会师，成立了中国工农红军第四军。1948年11月，陈毅参与了____战役的统一指挥，该战役的胜利为解放长江以南各省奠定了基础。

现有NaOH，NaHCO₃和Ba（OH）₂ 3种无色溶液，选一种试剂把它们鉴别出来，写出有关反应的现象、方程式如下：

为探究一溴环己烷()与NaOH的醇溶液共热发生的是水解反应还是消去反应，甲、乙、丙三位同学分别设计如下三个实验方案：
甲：向反应混合液中滴入稀硝酸中和NaOH，然后再滴入AgNO₃溶液，若有浅黄色沉淀生成则可证明发生了消去反应。
乙：向反应混合液中滴入溴水，若溶液颜色很快褪去，则可证明发生了消去反应。
丙：向反应混合液中滴入酸性KMnO₄溶液，若溶液颜色变浅，则可证明发生了消去反应。
其中正确的是

阅读理解

    NASA might be famous for sending rockets up to space quickly. But it will be more famous for making your next holiday come more quickly.

    The space agency is working on a new plane, which could solve the problems of supersonic(超音速的) flight and vastly increase the speed of journeys abroad. If successful, the plane would be able to fly between New York and London in just three hours. And it would reduce the time spent flying other journeys by a half, since it could be used more broadly. Until now, the problem with such planes has been the sonic boom(声爆), made famous by the original Concorde. That happens when a plane reaches supersonic speeds.

    It is a thunderous noise that upsets people on the ground— disturbing animals and even causing physical problems to materials and houses underneath. It was that effect that led Congress to ban such planes from being used over the US land, a decision that in turn was responsible for Concorde's failing to be commercially used.

    In view of the problem, the space agency has developed a new technology and tried it out in wind tunnels, and now believes that it could be put to commercial use. That plane will fly as high as 55,000 feet—far higher than normal planes—and make a sound of only 60 decibels. That's far less than 90 decibels thrown out by normal planes, and is roughly in line with a car on the motorway or a busy restaurant.

    “As long as we can get endorsement from the general public, the plane will probably be something that's acceptable,” said Peter Coen, project manager for NASA's commercial supersonic research team, in a new Bloomberg report. “If we get approved, we will have the full-sized version of the plane tried out and the plane will be put into use.”

阅读材料，完成下列要求。

党的十八大以来，中国提出了“一带一路”的对外开放战略。“一带一路”是指“丝绸之路经济带”和"21世纪海上丝绸之路”的简称。阅读下列材料，回答问题：

材料一：“丝绸之路”指起始于古代中国，连接亚洲、非洲和欧洲的古代商业贸易路线。狭义的丝绸之路一般指陆上丝绸之路。广义上讲又分为陆上丝绸之路和海上丝绸之路。“海上丝绸之路”是古代中国与外国交通贸易和文化交往的海上通道，该路主要以南海为中心，所以又称南海丝绸之路。海上丝绸之路形成于秦汉，发展于三国至隋朝，在唐宋元时期，海上丝绸之路进入繁盛期

——摘编自《丝绸之路研究丛书》

材料二：今天的“新丝绸之路”，是在古丝绸之路概念基础上形成的新的经济发展区域。在国内，包括西北五省区（陕西、甘肃、青海、宁夏、新疆）和西南四省区市（重庆、四川、云南、广西）。在国际，“新丝绸之路”秉持开放包容精神，继承古丝绸之路开放传统，贯通中亚、东南亚、南亚、西亚乃至欧洲部分区域，东牵亚太经济圈，西系欧洲经济圈。历史上的丝绸之路主要是商品互通有无，“新丝绸之路”就是要在古代中国丝绸之路轴线基础上，依靠中国与有关国家既有的双多边机制，借助既有的、行之有效的区域合作平台（如上海合作组织、亚信会议、中国—东盟等），与沿线国家对接发展战略，推进贸易、产业、投资、能源资源、金融以及生态环保的合作，实现中国与沿线国家的共同发展。它是现有合作的延续和升级，也是各国的利益共享地带。

——摘编自《中国的大博弈：通往新帝国之路》