A:①③
B:②④
C:③④
D:②③
阅读下列材料,回答问题。材料一:确定议会为国家的最高权力机关,规定国王必须依法行使权力,无权废除法律,征税需经议会同意,议员有政治活动的自由。材料二: “阐述了自由、民主的政治原则,指出人人生而平等,都享有生命、自由和追求幸福的权利;谴责了英国殖民统治的罪恶。材料三:自由、平等是天赋的人权;国家的主权属于人民,在法律面前人人平等;国家实行立法、行政、司法三权分立;私有财产神圣不可侵犯。请回答:1.以上三则材料分别是什么历史事件、什么机构中颁布的什么文件?你对这三个文件有何评价?2.你认为上述历史事件对世界历史影响最大的是哪一次?为什么?
人最宝贵的东西是生命。生命对人来说只有一次。因此,人的一生应当这样度过:当他回首往事的时候,他不因虚度年华而悔恨,也不因碌碌无为而羞愧,这样,在临死的时候,他能够说:“我把整个生命和全部精力都已献给了人生最宝贵的事业——为人类的解放而奋斗。”
这段文字出自《____》,主人公是____。从整部作品看,主人公是个怎样的人____?
小涛是某中学七年级学生,在他的“成长记录袋”中,记录了以下两个片段。结合所学知识,回答下列问题。
①除去乙烷中少量的乙烯:通入酸性高锰酸钾溶液中;
②除去乙酸乙酯中的乙酸:用饱和碳酸钠溶液洗涤,分液、干燥、蒸馏;
③除去苯中少量的苯酚:加入足量浓溴水后过滤;
④除去乙醇中少量的乙酸:加足量生石灰,蒸馏.
Gypsies
According to the linguistic and genetic researches, ancestors of the Gypsies left the land of India in the amount that did not go beyond 1,000 people. Today there are about 10 million Gypsies in the world. Some scientists believe that Gypsies were Egyptians.
Sumerians
Sumerians must be the mysterious people in the ancient world. We know nothing about their origin and nothing about the origin of their language. The Sumerians were rather advanced—they became the first in the Near East to use a wheel, to create an irrigation system and their unique writing. And besides, they were impressively good at maths and astronomy.
Maya
Some scientists believe that they are connected to legendary atlantes (男像柱), others suppose their ancestors were Egyptians. It's thought that the Maya created an efficient agricultural system and had deep astronomy knowledge. Their calendar was used by other people of Central America. Maya applied the hieroglyphic writing (象形文字) system. Now it seems that the Maya came from nowhere and disappeared nowhere.