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What the boy said was (believe). He is an honest boy.
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阅读理解阅读下列短文判断句子是否符合短文符合的写A.不符合的写B.Icanstillremember
Theboydidn'tcatchwhattheteachersaidbecausehismind_
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关于植物激素及植物生长调节剂在农业生产实践上的应用不符合实际的是
科研人员通过将小鼠的精子导入去核的卵母细胞中并进一步培养来获得具有体外无限增殖能力的“孤雄单倍体胚胎干细胞”．该种干细胞的获得原理属于生物变异类型中的
8分Attimesmymomhasbeenuncomfortableseeingthesequalitiesinme.ForexamplewhenIwas12IwenttoPuertoRicoallbymyselftostaywithmygrandmotherforthesummer.Mymomwasextremelynervousaboutit.ShekepttellingmehowthingsweredifferentinPuertoRico波多黎各toalwaysputonsunscreen防晒霜nottowanderawayfrommygrandmotherandotherwarnings.Shehelpedmepackanddidnotleavetheairportuntilshesawmyplanetakeoff. Butdespite尽管herworriessheletmegoonmyown.AsImovedintomyteensshecontinuedtogivemespacetogrowandlearnevenwhenitmighthavebeendifficultforher.WhenIreachedmysenioryearIdecidedtomoveawayforcollege.OnceagainIfoundthatIdifferedfrommypeers同龄人WhilemanyofthemwantedtostayclosetohomeIcouldn'twaittobeoutintheworldonmyown.Whilemymommaynothavebeenhappyatthethoughtofmygoingawayshewassupportiveandexcitedforme. OnebigthingIrealizedduringmysenioryearasmymomgranted允许memorefreedomwasthatsheactuallybelievesinmeandtrustsme.Thatmeansalot.MostofmylifeandespeciallywhenIwaslittlethemainpersonItriedtoimpressinmyschoolworkorotherthingswasmymother.Iknewsheexpectednothingbutthebestfromme.SometimesitwashardtoliveuptoherstandardsgettingasingleBonmyreportcardwouldmakemefeelbadbecauseIknewshewantedmetohaveallA's. Iknowthatherhighstandardshavehelpedmestayfocusedonwhat'simportantlikeeducationandmademewhoIam.Iamthankfulforhersupportandinvolvementinmylife.MostofallIrespecther.SheisthestrongestwomanIknowandthat'swhyIhaveturnedoutsostrongandindependent. 1.WhentheauthordecidedtogotoPuertoRicohismother. A.didn'tallowhimtodoso B.wantedtogowithhim C.worriedabouthissafety D.askedhisgrandmotherforadvice 2.Whydidtheauthordecidetomoveawayforcollege? A.Hewantedtobedifferentfromhispeers. B.Heplannedtokeepawayfromhismother. C.Heintendedtomakehismotherunhappy. D.Hewantedtobeindependent 3.WecanlearnfromParagraph3thattheauthor'smother. A.hadahighexpectationofhim B.caredlittleabouthislearning C.usedtoexpectnothingfromhim D.wastoostrictwithhim 4.Whatdoestheauthormainlywanttotellusinthetext? A.Hismother'sdeeploveforhim B.Theimportanceofhismother'strustandsupport C.Hislongwaytobecomeindependent D.Hisgoodrelationshipwithhismother
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假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中有10处语言错误每句中最多有两处.每处错误仅涉及一个单词的增加删除或修改.增加在缺词处加一个漏字符号∧并在其下面写出该加的词.删除把多余的词斜线\划掉.修改在错的词下划一横线并在该词下面写出修改后的词.注意1.每处错误及修改均仅限一词2.只允许修改10处多者从第11处起不计分.IworkedasahealthnurseinaverypoorcityinFlorida.Iwasoftenverykindlytomypatientsespeciallytheoldpeople.OneChristmasDayasIwerecookingChristmasdinnertomyfamilyIthoughtofsomeoldpeoplethere.Theyweremypatientswhichwerealwaysaloneathome.SoIdecidetomakemoreanddeliverhotmealstothem.WhenIsawmytwosonsplayinthehousehappilybutImadethemstop.AndIaskedthemhelpmepackanddeliverthesemeals.Aswetookthefoodintoourpoorhousestheywereverymovingandwesawtearsofjoyintheireyes.
回答下列有关人类遗传病及其内环境稳态的问题 Alport综合征是一种较为常见的小儿遗传性肾病临床表现为血尿进行性肾功能减退等症状常见的遗传方式有X连锁显性遗传和常染色体隐性遗传两种．如图为某家系的Alport遗传系谱． 1若该家系Alport综合征是X连锁显性遗传用字母A/a来表示相关基因则Ⅰ2号的基因型是． 2若该家系Alport综合征是常染色隐性遗传Ⅲ16号与和其同基因型的女性婚配他们的子女患病的概率是． 3根据图可初步判断该家族Alport综合征的遗传方式更可能是判断的依据是． A．隔代遗传 B．父母正常但子女患病 C．父亲患病女儿全患病 D．母亲患病儿子全患病 Alport综合征患者的肾小球血管球因炎症通透性增加导致血细胞以及蛋白质能够渗出从而出现血尿和蛋白尿． 4正常情况下尿液中不应出现血细胞血细胞原本生活的体液环境应为． 5当大量蛋白随尿液排出而肝脏合成蛋白供给不足时易导致组织水肿原因是．
PaenLonghashadadreameversincehesawaplaneforthefirsttimeattheageofsix.Hisdreamwasto1aplane.Lastyearthe30﹣year﹣oldmanstartedbuildinghisplane2.Iwasafraidthatpeoplewould3mesosometimesIworkedatnighthesaid.Itwasalongtime4heputhisdreamintopractice.FinallyPaenLongdecidedtotrytobuildhisownplaneusingthemoneyhehad5fromrunninghisowngarage.Hehasspentthreeyears6YouTubevideosinorderto7howtomakeaplane. Ittookhimayeartobuildhisplaneusingmostlyrecycledmaterials.Theplane'sfirst8cameat3pmon8thMarch.Localvillagersgatheredexcitedlytowatchtheplanefly.9theplaneonlygot50mintheairbeforecrashing撞击tothe10.WhenallpeoplewerelookingatmeIfeltvery11hesaid. Althoughthefirsttry12PaenLongremains13.Hisnextprojectistobuildaseaplane. PaenLongthinkstheplanewillcostover$10000.lneverfeel14forspendingallmymoneybuildingaplanehesaid. HiswifeHingMuoyheng15aboutherhusbandespeciallyastheyhavetwoyoungsons.Howevershehasno16.Idon'tknowhowplanesworkandhedoesn'thaveany17tohelphim.Hecanonlysearchforinformationhimselfshesaid.Itriedtoaskhimto18afewtimesbecauseIwasafraidbuthesaidhewouldn't19soIhavetosupporthis20. 1.A.make B.repair C.draw D.buy 2.A.carefully B.impatiently C.secretly D.suddenly 3.A.makeuseof B.keepawayfrom C.lookupto D.makefunof 4.A.before B.until C.when D.since 5.A.expected B.saved C.stolen D.borrowed 6.A.recording B.producing C.watching D.showing 7.A.answer B.guess C.control D.learn 8.A.design B.flight C.interview D.meeting 9.A.Therefore B.Besides C.However D.Otherwise 10.A.ground B.crowd C.house D.park 11.A.angry B.proud C.excited D.embarrassed 12.A.appeared B.continued C.failed D.changed 13.A.determined B.kind C.nervous D.upset 14.A.anxious B.sorry C.hungry D.grateful 15.A.hears B.knows C.talks D.worries 16.A.chance B.aim C.choice D.reason 17.A.experts B.classmates C.volunteers D.workers 18.A.fly B.stop C.help D.leave 19.A.giveup B.runoff C.getover D.lookback 20.A.suggestion B.dream C.conclusion D.research
β受体阻滞剂是高血压患者初始和长期应用的降压药物之一．根据血压调节的特点判断下列对β受体阻滞剂的作用机理说明不合理的是
重症肌无力MG是机体对肌肉上的乙酰胆碱受体产生自身免疫反应后导致的其病因主要是患者体内产生的抗乙酰胆碱受体的抗体作用于乙酰胆碱受体后使乙酰胆碱受体退化且萍生受阻．请分析并回答下列问题1题中所述乙酰胆碱是在填传入神经中间神经或传出神经细胞内合成的释放前储存于中作用于骨骼肌细胞后细胞膜离子的流动情况是．2临床上可采用切除胸腺来治疗MG重度患者目的是抑制细胞的发育成熟不能产生淋巴因子从而抑制体液/细胞免疫的应答．
TohelptheenvironmentmanyAmericanshavemadethechangefrompaperandplastic塑料的bagstoreusableshoppingbags.ButareportbyaFloridanewspapersaysthatreusableshoppingbagssoldbysomesupermarketshavehighlevelsoflead铅whichcanbedangeroustohumansespeciallyyoungchildren.Nowthere'sacallforarethinkabouttheuseofreusableshoppingbags. WhenourfamiliesgotothestorelookingforsafeandhealthyfoodsthelastthingtheyshouldbeworryingaboutisabagCharlesSchumeragovernmentofficialsaid.Quickandcompleteresearchwillalloweveryonetomakerightdecisions. ThenewspaperboughtmorethanadozenbagssoldatPublixsupermarketsfromFloridasupermarketstotestthemforlead.Theresultsshowedthatcertainbagshadleadlevelsthatworriedhealthofficials.Somebagshadenoughleadinthemtobeconsidereddangerouswasteifpeopleweretothrowthebagsoutwithotherrubbish.Leadinthebagsmaynotmoveontofood.Butovertimepaintonthebagscanbreakoffandthebagscanwearout.Whenthishappensleadcanbefreed. Thebagswiththehighestlevelsofleadhadbeautifuldesignsandmanypictures.Plain朴实无华的reusablebagswithoutthemarefoundtohavelittlelead.Peopleworriedaboutleadlevelsinreusablebagscanturntocloth.Paperbagsarealsoagoodchoicesincepapercanbereused. 1.Whatworriespeoplenowisthatreusableshoppingbags. A.can'tbereused. B.canbeadangertopeople. C.areawasteofmoney. D.areasbadaspaperbags. 2.Leadinshoppingbagswillprobablycomeoutwhen. A.thepaintisseparatedfromthem B.theyarethrownaway C.foodisputinthem D.theyareputwithotherrubbish 3.What'sthebesttitleforthetext? A.Thereturnofpaperbags B.Timetoinventgreenershoppingbags C.Theharmoflead D.Becarefulwithreusableshoppingbags
永生是人类生物学研究的热门话题研究发现人的寿命与基因有关通过研究百岁老人的基因组发现含有CDKN2B的基因其寿命过百的概率将大幅增加．某科研小组欲将CDKN2B基因导入多只鼠的受精卵中然后统计其平均寿命是否高于正常鼠请帮助其完善操作过程 1研究小组目前只有少量的CDKN2B基因若想获得大量的CDKN2B基因需要用到技术该技术的本质是． 2在构建基因表达的过程中需要用到将CDKN2B基因与载体相连接． 3将目的基因导入小鼠受精卵的常用方法是． 4若想让一个受精卵发育成多个个体可以用技术在操作时应选择发育良好和形态正常的同时还应注意将均等分割．该技术的本质是繁殖．
如图为电子显微镜下观察到的细胞核．细胞核与细胞质之间交换物质的孔道位于
果蝇是遗传学研究的良好材料回答下列与果蝇有关的问题．1科学家在果蝇核基因组测序建立基因图谱时需测定果绳条染色体的碱基序列．2果蝇的2号染色体常染色体上存在A/aB/b两对等位基因．①A/aB/b两对等位基因的传递填遵循或不遵循基因自由组合定律．②A基因或B基因纯合时均致死．让如图所示基因组成的雌雄果蝴交配不考虑交叉互换和基因突变子代中杂合子的概率是让该种群中个体自由交配产生的后代个体中A基因的频率填上升下降或不变．3果蝇的红眼和白眼由位于X染色体上的一对等位基因控制．一只红眼雄果蝇与一只白眼雌果蝇交配子代中发现一只白眼雌果蝇．该白眼雌果蝇出现的原因可能是基因突变也可能是．
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昨晚我熬夜看了一场足球赛.I towatchafootballgamelastnight.
回答下列有关细胞分裂的相关问题 细胞分裂受到特殊基因的调节若这些基因因外界因素干扰突变为癌基因就会导致细胞周期异常．图为受癌基因诱导情况下OE和正常情况下NE随时间推移进入S期阶段细胞的百分比． 1若要判断细胞分裂是否进入S期检测的标准是． 2据图判断在癌基因的诱导下细胞周期中发生的变化是．多选 A．提早进入S期B．细胞周期延长 C．G22期缩短D．G1期缩短 研究显示Trf1基因缺陷的雄性小鼠不育睾丸变小且几乎没有成熟精子产生．经进一步实验发现Trf1基因缺陷小鼠精原细胞分裂大量阻滞在减Ⅰ前期一部分细胞中也因染色体末端黏连而最终“死亡”． 3下列最可能是由“染色体末端黏连”所导致的后果是． A．中心体倍增异常B．着丝粒分裂异常 C．纺锤丝形成异常D．染色体分离异常 4减Ⅰ前期是减数分裂的重要时期请简要描述正常情况下这一阶段染色体的行为变化并从遗传和变异的角度说明该行为的意义．
—Whendidyougototheartmuseum?—.A.Infivedays B.ForfivedaysC.Fivetimesaday D.Fivedaysago
自然界中有些生物如迁徙的鸟类像是天生就自带指南针属性长途跋涉不迷路与其体内的磁受体蛋白MagR有关MagR复合物能感应到微弱的地球磁场并沿着地球磁场方向排列．下列叙述不正确的是
回答下列有关植物光合作用的问题 外来寄生害虫“悬铃木方翅网蝽”以刺吸悬铃木叶片液汁为生植物保护研究部对不同受害级别的悬铃木叶片进行了生理指标的检测其中叶片失绿面积越大受害等级越高．图1和表1分别为悬铃木方翅网蝽寄生悬铃木后对叶片叶绿素含量的影响以及其它生理参数的影响． 1提取叶绿体中色素所用的试剂为． 2用纸层析法分离“受害等级0”叶片中的叶绿体色素得到的结果如图2．据图1判断下列与“受害等级5”叶片的叶绿体色素分离结果相符的是． 3气孔导度表示气孔张开的程度气孔导度的大小可以反映气体进入细胞的量．在本研究中需要通过气孔导度来监测的气体是． 4本研究也对悬铃木叶片中还原性糖的含量进行了检测．实验室鉴定还原性糖所用的试剂是 5根据表1和图1结合影响光合作用过程的因素分析悬铃木方翅网蝽的寄生影响悬铃木生长的原因．
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