题干

下列有关物质制备的说法错误的是

A:实验室制备O2可用H2O2和MnO2为原料方便制得

B:人类社会发展史,也是人类金属冶炼史,由于化学工艺所限不活泼金属往往人类先发现并制得,随着化学发展,活泼金属逐渐被人们发现并制得,如金早于铜,铜早于铁,铁早于铝,铝早于钠。

C:工业制备镁采用电解熔融氯化镁的方法

D:工业采用电解饱和食盐水的方法制备氯气。

上一题 下一题 0.0难度 选择题 更新时间:2018-11-16 07:03:00

答案(点此获取答案解析)

B

同类题2

阅读下面短文,从短文后各题所给的四个选项(A、B、C、D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

    People say one man's trash(垃圾) is another man's treasure. That1 comes to me as I2 the house purchased in 1962 by my parents. My mother passed away in 1996. My father left the house3 my sister and me when he died a few months ago.

    After Dad was4 , we looked around the5 house where we grew up and that Dad loved so much. At first we felt so6 all the stuff left. Like so many of their generation, my parents7 everything. And like many in my generation, we faced anxious 8 about what to abandon and what to keep.

    As we started throwing out old phone books and every medical bill from every9 my parents ever saw, I also10 many hidden treasures. Mom's pocketbook was in their bedroom closet, which had everything in it, 11 her hairbrush with hair, as if she were still here. And Dad, who was a World War II veteran(退伍兵) and a world traveler,12 everything—from little spoons from all over the world to every letter he wrote to his parents while in the13. The letters he wrote during the war14 his thoughts as a young man. Later, in the basement, I15 our old kitchen table, which brought back 16 of my parents and sister and me having breakfast together .

    I'm realizing all these things17 my parents' life journey. Each time I go to18, I find something that reminded me of my childhood or teaches me something about my parents I19 knew. 20, from the shabby furniture to all the hidden treasures, means more to me than all the money in the world.

同类题4

阅读下列有关宗教的材料,回答问题。

材料一:宗教改革(英语:Reformation),开始于欧洲16世纪基督教自上而下的宗教改革运动(抗议宗教改革运动,ProtestantReformation),该运动奠定了新教基础,同时也瓦解了从罗马帝国颁布基督教为国家宗教以后由天主教会所主导的政教体系,为后来西方国家从基督教统治下的封建社会过渡到多元化的现代社会奠定基础,因而西方史学界直接称之为“改革运动”(Reformation)。

——《百度百科》

材料二:亨利八世(1509-1547年)原反对马丁路德和更正教,后与王后凯瑟琳(Catherine)离婚,遂成为他改革的导火索。从实质上看,变革是在英格兰民族主义和反教权主义日益高涨的情况下实现的,并和亨利八世的对法战争和西欧的国际格局变化都有一定的联系。他受拒于罗马皇帝,因此1534年与更正教合作并共同通过《最高治权法案”》(ActofSupremacy)宣布创立英国国教(Anglicanchurch),又称圣公会,与罗马旧教的教义仪式并无二致,只是英国王代替罗马教皇成为政教权威。同时亨利八世也是最早研习全球地理的欧洲统治者。(注释:更正教——对新教的一种翻译。)

——《百度百科》

材料三:基于“宗教是人民的鸦片”的理解,讨论儒家文化是否也是一种宗教,也就变成对儒家文化“历史罪行”的审查和认定——儒家文化不仅被等同于封建专制,被认定为“吃人的礼教”,如果再加上一条“人民的鸦片”,可谓罪上加罪,那就可以在打倒的基础上,“再踏上一只脚”,“永世不得翻身”!由此,关于儒教是否是宗教的讨论就超越了单纯学术领域,带有为儒家文化或给予政治审判或给予政治辩护的味道。

——摘自《认识儒教》——彭永捷

材料四:可是,儒教的“天”并不等同于基督教的“神”,儒教的圣人也并不具有神性和法力,儒教的成贤成圣并不寄望于来世和往生,然而这并不妨碍儒教成为一种宗教。儒教是“神道设教”,作为人之养成的教化之教与作为安身立命的宗教之教合而为一。

儒教的“执无鬼而学祭礼”曾招致墨子后学的批评,面对释、道二教的昌盛,儒教在唐宋的复兴中也同样重新处理生死存殁的议题,儒教仍然始终坚持“子不语怪力乱神”的立场,但这并不妨碍儒教起着“为天地立志,为生民立道”。

——摘自《认识儒教》——彭永捷