若0<a<1,则a、-a、1a、a2从小到大排列为______. 发布时间:2017-04-17 15:38 │ 来源:www.tikuol.com 题型:填空题 问题: 若0<a<1,则a、-a、1a、a2从小到大排列为______.
题型:填空题 选出对下列加点字的意义与用法判断正确的一项( )①约我以礼 ②无以为也 ③其何伤于日月乎 ④子贡贤于仲尼A.①②同,③④同B.①②不同,③④不同C.①②不同,③④同D.①②同,③④不同 查看答案
题型:填空题 电子式电能表已开始走进千家万户,如图所示为某电子式电能表的表盘(局部)。(1)请解释表盘上“220V”、“10A”和“50Hz”字样的含义。(2)使用该电能表的电路最多可让几只“PZ220-100”的灯泡同时正常发光?(3)表盘上“imp/kW·h”是电子式电能表的一个重要参数“脉冲输出”的单位,其数值表示用电1kW·h表盘上耗电指示灯闪烁的次数。若某用电器单独接在该电能表上,用电器正常工作5min,指示灯闪烁了160次,则5min内该用电器消耗的电能为多少?该用电器的额定功率是多大? 查看答案
题型:填空题 独不见 唐·沈佺期卢家少妇郁金堂,海燕双栖玳瑁梁。九月寒砧催木叶,十年征戍忆辽阳。白狼河①北音书断,丹凤城②南秋夜长。谁知含愁独不见,使妾明月照流黄③!①白狼河:白狼河,今辽宁境内大陵河。②丹凤城:指长安。③流黄:古时女子居室的帏帐。小题1:这首诗描写了怎样的情景?寄寓了诗人怎样的情感?(5分)小题2:这首诗的颔联和颈联主要运用了哪些手法?请简要赏析。(6分) 查看答案
题型:填空题 信息匹配。 阅读下列应用文及相关信息,并按照要求匹配信息。首先阅读下列某实习编辑从一组读者来信中整理出来的关键备忘信息:AHobbies: reading, listening to music and watching birdsPurpose: asking for spare copies of textbooks, teaching materials or journalsBHobbies: reading, singing and travelingPurpose: learning about ideas of teaching professionals in the worldCHobbies: role-playing, listening to music and collecting nice thingsPurpose: communicating with new friends among English teachers from the UKand the USAD Hobbies: reading and exchanging fancy gifts and ideas about local customs and conventions Purpose: exchanging ideas on teaching methodsEHobbies: listening to western pop music, exchanging gifts and collecting thingsPurpose: making friends with both fellow teachers and students of English aroundthe worldFHobbies: swimming, cycling and raising cats and dogsPurpose: finding pen friends all over the world and communicating inEnglish以下信函为上面关键备忘信息的来源。为有效管理资料,请将关键备忘信息与信函原件匹配起来。1 Dear Editor,I am a secondary school teacher of English. I would like to have pen friends all over the world for my students. They are aged 15-19 and good at swimming, cycling and raising cats and dogs. If students in your country are interested in corresponding with Turkish students in English, please tell them to write to my address, so that I can distribute their letters to my students who are willing to have friends and are in need of practice.Ms. Imbat81030, IstanbulTurkey2Dear Editor, I am interested in corresponding with other TEFL teachers and researchers about issues of professional development. I would like to share ideas with fellow teachers from English-speaking countries throughout the world. My hobbies are reading, listening to music and watching birds. SinceI live in a rather isolated area, I would appreciate any spare copiesif text books, teaching materials or journals that other teachers would be able to send me. Ms. Juliana Sirait 21214,Kisaran Indonesia3Dear EditorI am a 33-year-old secondary school teacher of English in Hungary. I would like to make newfriends among English teachers mainly from English, the USA, Switzerland, and Scandinavia. I am interested in role-playing and team work, I would also like to correspond with colleaguesall over the world with the same hobbies as mine: collecting nice things, listening to music, reading and traveling.Mariann Nyari6724, Szeged , Tavasz1/BHungary4Dear Editor,I am a 23-year-old Peace Corps Volunteer teaching secondary English in Equatorial Guinea. This is my first experience teaching formally, so I would like to know some of the ideas of all you professionals out there in the world. Letters do not have to be all business. When theschool day ends, I would enjoy hearing from you. I enjoy reading. Singing, traveling and so on.Kury W.CobhamAP Box 456Equatorial Guinea5Dear Editor,I’m a 30-year-old teacher of English at a middle school. I’d be happy to make friends with both fellowteachers and students of English around the world. I also wish to find pen-friends for my students between 13 and 20years old. My interests are letter writing, listening to western pop music, exchanging gifts, and collecting stamps, maps, picture postcards and coins.Mr.S. Thevachandra47/1,Kalm UnaiSri Lanka 查看答案
题型:填空题 ×日,某双苯厂硝基苯精馏塔发生爆炸,造成6人死亡,56人受伤,直接经济损失6540万元,并引发××江水污染事件。国务院事故及事件调查组认定,××石化分公司双苯厂“×××”爆炸事故和××江水污染事件是一起特大生产安全责任事故和特别重大水污染责任事件。 1.爆炸事故的直接原因是:硝基苯精制岗位外操人员违反操作规程,在停止粗硝基苯进料后,未关闭预热器蒸气阀门,导致预热器内物料气化;恢复硝基苯精制单元生产时,再次违反操作规程,先打开了预热器蒸汽阀门加热,后启动粗硝基苯进料泵进料,引起进入预热器的物料突沸并发生剧烈振动,使预热器及管线的法兰松动、密封失效,空气被吸入系统,由于摩擦、静电等原因,导致硝基苯精馏塔发生爆炸,并引发其他装置、设施连续爆炸。 2.爆炸事故的主要原因是:双苯厂对安全生产管理重视不够、对存在的安全隐患整改不力,安全生产管理制度存在漏洞,劳动组织管理存在缺陷。 3.污染事件的直接原因是:双苯厂没有事故状态下防止受污染的“清净下水”流入××江的措施,爆炸事故发生后,未能及时采取有效措施,防止泄漏出来的部分物料和循环水及抢救事故现场消防水与残余物料的混合物流入××江。 4.污染事件的主要原因: (1)××分公司及双苯厂对可能发生的事故会引发××江水污染问题没有进行深入研究,有关应急预案有重大缺失。 (2)××市事故应急救援指挥部对水污染估计不足,重视不够,未提出防控措施和要求。 (3)××石油天然气集团公司对环境保护工作重视不够,对××分公司环保工作中存在的问题失察,对水污染估计不足,重视不够,未能及时督促采取措施。 (4)××市环保局没有及时向事故应急救援指挥部建议采取措施。 (5)××省环保局对水污染问题重视不够,没有按照有关规定全面、准确地报告水污染程度。 (6)××市环保总局在事件初期对可能产生的严重后果估计不足,重视不够,没有及时提出妥善处置意见。 根据以上场景,回答下列问题《安全生产法》第七十条规定,生产经营单位发生生产安全事故后,单位负责人应当( ),不得隐瞒不报,谎报或者拖延不报,不得故意破坏事故现场、毁灭有关证据。A.迅速采取有效措施,组织抢救,防止事故扩大B.按照国家有关规定立即如实报告当地负有安全生产监督管理职责的部门C.不管付出多大代价,抢救伤员D.减少人员伤亡和财产损失E.先保护重要的物资设备,后救护伤员 查看答案