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河川沙塘鳢（odontobutis potamophila）的生殖系统发育及其繁殖行为研究,沙塘鳢,沙塘鳢鱼苗价格,鸟的生殖和发育ppt,鸟的生殖和发育,昆虫的生殖和发育,儿童生殖发育,人的生殖和发育,动物的生殖和发育,生殖与发育
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河川沙塘鳢（odontobutis potamophila）的生殖系统发育及其繁殖行为研究
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北京时间日8时02分四川省雅安市芦山县发生7.0级地震。震源深度13公里。从地质构造上看，地震的发生不是一个偶然的现象，它是其所处的大陆板块地质活动的结果。这表明（&&）①在客观规律面前，人是无能为力的&&&&&&&&&&&&&②违背客观规律，人们就会受到规律的惩罚 ③事物的运动变化不是杂乱无章的，而是有其固有的规律性 ④规律是客观的，不以人的意志为转移A．①③* U- ?6 E! _: W$ J B．②③7 j9 L* T8 N4 i% P C．②④: J$ I, M- ^- H; U9 ^ D．③④( O- S3 ]2 O0 D5 G" H
解析试题分析：规律是客观的，但人们在客观规律面前并不是无能为力的，人们可以发挥主观能动性，认识和利用规律，为人类造福，①说法错误；从地质构造上看，地震的发生有其自身的规律，不以人的意志为转移，③④说法正确；材料没有体现人违背规律，②与题意无关。该题选D。考点：本题考查规律具有普遍性、客观性。百度拇指医生
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验证码输入错误，请重新输入以2012年3月新郑市某蛋鸡场发生的一例疑似呼吸型传染性支气管炎病病鸡为研究对象,取剖检病鸡的气管和肺脏组织,经过无菌处理分离到一株病毒,为确定该病毒,应用病毒分离、血凝试验、鸡胚矮小化试验、干扰新城病毒复制试验、琼脂凝胶扩散试验,RT-PCR鉴定和动物回归试验方法鉴定,结果均符合鸡呼吸型传染性支气管炎病毒的生理特性.以上检查结果结合临床、剖检症状,确认该病毒就是鸡呼吸型传染性支气管炎病毒.的翻译是:Takes a case of doubtful breath infectious bronchitis sickness sickness chicken that in March, 2012 some Xinzheng layer field has for object of study, takes to split to examine the trachea and lung organization of sickness chicken, separates after aseptic processing to a virus, to determine this virus, congeals the experiment using the virus isolation and blood and chick embryo diminutive experiment and disturbance new town viral replication experiment and agar gel proliferation experiment, the RT-PCR appraisal and animal regression test method appraisal, finally conforms to the physiological characteristics of chicken breath infectious bronchitis virus. The above check result union clinical, splits to examine the symptom, confirmed that this virus is the chicken breath infectious bronchitis virus.
国家助学贷款是高校家庭经济困难学生资助政策体系主要内容,不仅直接关系家庭经济困难学生及其家庭的切身利益,而且直接关系国家人才培育和社会稳定的大局,以及教育公平和社会正义的实现。然而,大学生在国家助学贷款中的失信行为却严重地影响和困扰着国家助学贷款的正常开展。本文主要探讨了国家助学贷款中大学生诚信教育的相关因素,结合其中存在的各种问题,进行深入的探析,提出加强大学生诚信教育的相关建议。的翻译是:
分析广西建设一站式远程医药信息资源服务平台的必要性,介绍平台建设的主要内容及平台的功能模块,具体包括注册模块、系统管理员模块、用户服务模块等,指出其建立具有重要的现实意义的翻译是:Analyzes the necessity of Guangxi construction one-stop work style long-distance medical information resource service platform, introduced that the functional module of primary coverage and platform of platform construction, specifically includes to register the module, the system administrator module and client module, pointed out that it establishes to have the vital practical significance
EBSCO数据库是世界上最大的多学科学术期刊数据库和综合性商业资源全文数据库,已经被多个科研机构和高校图书馆订购使用,从用户登录与检索、文献类型偏好、使用成本和文献学科需求等方面对EBSCO数据库进行使用分析,探索电子资源建设的科学性与合理性,对优化图书馆资源结构,提升信息服务质量,提高使用效率具有重要的意义。的翻译是:The EBSCO database is in the world the biggest multi-disciplinary scientific journal database and comprehensive business resource full text database, already by many scientific research institution and college library order use, registers from the user with retrieval, literature type preference, use cost and literature discipline demand and other aspects carries on the use analysis to the EBSCO database, explores the scientific nature and rationality of electronic resource construction, to optimizing the library resource structure , to promote the information service quality, raises the efficiency significant.
目的探讨特发性肺间质纤维化(IPF)临床特征、肺部影像学表现及病理改变,为减少或控制呼吸系统疾病危害提供重要手段与依据。方法采用流行病学回顾性队列追踪研究方法,以面对面调查结合查看病例等方式,应用个体化问卷调查表。结果 101例患者咳嗽96例(占95.05%),干咳53例(占52.48%),31例有进行性呼吸困难(占30.69%),发热11例(占10.89%),查体双下肺爆裂音42例(占41.58%),杵状指30例(占29.70%),紫绀17例(占16.83%)。X线胸片检查有59例出现轻重不等弥漫性网状结节(占58.42%),13例有蜂窝变改变(占12.87%),9例出现磨玻璃样改变(占8.91%),11例有胸膜增厚(占10.89%),14例出现膈影抬高肺容积缩小(占13.86%)。CT及HRCT扫描:CT可见病变累及上叶和下叶,中下野明显较多,背侧更为明显,呈清晰的外周分布,重者或涉及肺中带。101例均出现清晰可见网状结节影,结节直径2～3mm,边缘模糊,网络相连。28例有明显蜂窝改变占27.72%,11例有磨玻璃改变占10.89%,13例有局限性胸膜增厚占12.87%。结论 IPF临床特点很独特,其肺部...的翻译是:
目的:建立除湿止痒软膏中虎杖苷的含量测定方法。方法:采用高效液相色谱法,色谱柱为Agilent TC-C18柱(250 mm×4.6 mm,5μm),以乙腈:水(23:77)为流动相,流速为1 mL·min-1,检测波长为306 nm。结果:虎杖苷在0.μg范围内与峰面积呈良好的线性关系,S=0.9(r=0.9999);平均回收率为100.02%,RSD为1.96%,n=6。结论:该方法简便、可靠、准确,专属性强,可用于该制剂的质量控制。的翻译是:Goal: Establishes to dehumidify stops in the itchy ointment the assay method of giant knotweed glucoside. Method: With the high performance liquid chromatography, chromatographic column is the Agilent TC-C18 column (250 mm×4.6 mm,5μm), by acetonitrile: The water (23:77) is bonded phase, speed of flow is 1 mL min-1, the examination wave length is 306 nm. Result: The giant knotweed glucoside shows the good linear relationship with the peak area in 0. μg scopes, S=0.9(r=0.9999); The average recovery rates are 100.02%, RSD are 1.96%, n=6. Conclusion: This method simple, reliable and accurate, specificity, may be used in the quality control of this preparation.
卵泡抑素(follistatin,FST)是转化生长因子β(Transforming growth factor-β)超家族成员之一,在动物肌肉生长中起重要作用。采用RT-PCR、RACE和常规PCR技术克隆了大黄鱼FST基因。获得的基因序列长3195 bp,其中5'非编码区96 bp,3'非编码区47 bp,含5个外显子及4个内含子。该基因开放阅读框972 bp,编码323个氨基酸,其中信号肽31个氨基酸,成熟肽292个氨基酸。Blast结果表明,大黄鱼FST基因与金鲷FST基因的核苷酸及蛋白序列同源性最高,分别达到96%和99%。FST基因在大黄鱼脑、眼、鳃、肾等多个组织中表达,其中鳃组织的表达量最高,脾组织中表达最低。检测水温19℃、25℃、30℃时大黄鱼不同组织FST基因表达量,眼和肌肉组织中FST基因表达量变化显著,推测FST基因可能在鱼类生长发育中发挥重要作用。的翻译是:
以牡丹基因组为模板,利用简并引物进行PCR扩增,得到了编码Ty1-copia类反转录转座子反转录酶(RT基因)的序列,测序后所得序列长度为240 bp,包含2个开放读码框,共编码63个氨基酸。经NCBI中BLAST比对结果显示,洛阳红牡丹RT基因与枸杞、甜菜等RT基因的同源性均在70%以上。经MEGA和DNAstar软件分析表明,该片段在进化上与梅、杨、茶和苹果等落叶木本植物的同源性序列存在更高的同源性和更近的亲缘关系,与枸杞、鹰嘴豆、番茄、草莓等草本植物的同源性序列亲缘性较远。的翻译是:Takes the peony genom as the template, carries on PCR to increase using the degeneration primer, obtains has coded the Ty1-copia kind of retrotransposon reverse transcriptase (the RT gene) the sequence, after the sequence, the obtained sequence length is 240 bp, contains 2 open reading frames, altogether codes 63 amino acids. In the BLAST intercomparison result after NCBI showed that Luoyang red peony the RT gene and Chinese matrimony-vine, beet and other RT gene of homology over 70%. Showed after MEGA and DNAstar software analysis that this fragment the homology sequences has a higher homology with the plum, Yang, tea and apple and other fallen leaf xylophyte in the evolution and nearer sibship, homology sequence blood relationship is far with the Chinese matrimony-vine, chick-pea, tomato, strawberry and other herb.
项目地址芬兰埃斯波竣工日期2012.08自从1991年以来,Chico's连锁餐厅就一直向芬兰人民专供北美风味食品。到了2012年春,旗下老字号餐厅名为大苹果餐厅(Iso Omena)在经过大胆全新的室内设计后重新开业。Amerikka设计事务所为迎合餐厅新式食品、饮料和服务理念,特意为餐厅注入了全新的空间设计理念,重新设计后的餐厅在视觉上发生了蜕变。的翻译是:Project address Finland Espoo completion date 2012.08 since 1991, the Chico's chain-like dining room has fed specially the North American flavor food to the Finnish people. To the spring of 2012, the old shop dining room named big apple dining room (Iso Omena) in has started doing business after the bold brand-new interior design. The Amerikka design office to cater to the dining room new style food, drink and service concept, has injected into the brand-new space design idea for the dining room specially, after redesigning the dining room had the transformation in the vision.
本文对一种采用移相PWM控制的半桥DC-DC变换器进行了研究,给出了其主电路结构,详细分析了其工作原理,并给出了半桥变换器实现ZVS工作的条件。在此基础上,给出变换器的双环PWM控制策略。最后通过仿真和实验,验证了理论分析的正确性及控制方法的可行性。的翻译是:This article to one type half bridge DC-DC converter that uses the phase shifting PWM control has conducted the research, has given its main circuit structure, has analyzed its principle of work in detail, and gave half bridge converter to realize the condition of ZVS work. On this basis, gives the Shuanghuan PWM control policy of converter. Finally through the simulation and experiment, has confirmed the feasibility of accuracy and control method of theoretical analysis.
基于World View-2高分辨率遥感卫星影像及ASTER GDEM(V1)数字高程模型(DEM)数据,以Arc GIS和Global Mapper软件为平台,通过影像解译、地形高程、地表坡度及地形剖面等分析手段,对腾冲火山区火山地形地貌特征进行综合分析。研究表明,腾冲火山区存在多种地貌单元,文中根据不同地貌单元的影像特征,建立相应的遥感解译标志,并将区内新期喷发的、典型的火山地貌单元划分为4个类别。地表坡度及地形剖面分析显示,腾冲火山区地貌单元横向上地表起伏差异明显、坡度变化特征不一,纵向上存在明显分层,大致划分为4级地貌面,地形高程上呈现西高东低,中部高、南北低的特征,这主要与原始地貌、盆地构造演化及后期火山岩浆活动相关。区内SN向构造带为主的构造格局制约着火山的喷发展布特征,早期喷发的大六冲、小六冲等碎屑岩类火山,喷发动力极强,形成高耸山体,居于盆地中部,后期喷发的黑空山、大空山、马鞍山等熔岩类火山,喷发动力减弱,岩浆溢流为主,形成广阔的熔岩台地。盆地的演化及构造发育直接影响和制约火山活动的强弱,火山活动又进一步改造了盆地的地形地貌,形成了腾冲火山区现今的火山地貌特征。的翻译是:
技工院校应充分地认清化工专业的发展机遇,切实找到自身与企业需求之间的差距,找准目标,结合企业的需求,不断更新教学思路,及时的调整更新课程,学校应打造精品专业,强化主体专业,精细新型专业,走校企合作之路,加快发展步伐,在发展中完善,在改革中前进,实现学校和企业的完美对接。的翻译是:The mechanic colleges should fully clearly recognize that the chemical specialized development opportunity, found oneself the disparity earnestly with enterprise demands, looks for the accurate goal, the demand of union enterprise, continuously renews the teaching mentality, the prompt adjustment refresher course, the school should create the high-quality goods to be specialized, strengthens the main body to be specialized, the fine new specialty, takes the road of school business cooperation, quickens the pace of development, improves in the development, goes forward in the reform, realizes the perfect docking of school and enterprise.
研究了从澳大利亚某红土镍矿中搅拌浸出镍,考察了酸度、浸出时间、浸出温度、矿石粒度和液固体积质量比对镍浸出率和酸耗的影响。试验结果表明,在酸度1.94mol/L、矿石粒度-2mm、浸出时间3h、浸出温度80℃、液固体积质量比3∶1条件下,镍浸出率为73.58%,酸耗在80t/t镍左右。该工艺具有投资少、工艺简单等特点,为处理红土镍矿提供一种可选择工艺。的翻译是:Has studied the agitation leach nickel from some Australian red soil nickel ore, inspected the acidity, the extraction time, the leaching temperature, the ore granularity and liquid solid volume mass ratio to the influence that the nickel leaching rate and acid consume. The results show that in acidity 1.94mol/L and ore Granularity-2mm and extraction time 3h and under the leaching temperature 80℃, liquid solid volume mass ratio 3∶1 condition, the nickel leaching rate is 73.58%, the acid consumes in the 80t/t nickel about. This craft has to invest, craft few simple and other characteristics, to process the red soil nickel ore provides one type to choose the craft.
设计了一种Z轴完全差分电容式加速度传感器,交错梳齿、两组对称可动梳齿通过挠性梁连接在固定衬底上,对称布局使结构稳定并解决了X和Y轴向对Z轴向加速度检测的耦合干扰。对传感器在敏感方向加速度作用下的偏转特性进行分析,给出了相关理论模型并对其求解。对传感器在非敏感方向加速度作用下的扭转变形进行分析,计算该扭转对Z轴检测产生的干扰与结构之间的关系。通过结构的优化设计,使传感器在设计的量程范围内达到最佳检测效果。利用ANSYS进行模拟分析,得到该传感器的灵敏度为0.31 fF/g,验证了本设计分析的合理性、可行性和精确性。的翻译是:
将句法平面词的词性特征、依存关系、依存关系中的词性特征、邻接依存关系、邻接依存关系中的词性特征与倾向性词汇和倾向性搭配作为支持向量机(SVM)分类器的特征集,以句子为单位对多个领域的文本进行倾向性判断.通过交叉验证的方式,估计出分类器的精度为95.6%,据此提出句子倾向性分析可不以句子倾向性判断为前提.的翻译是:The lexical category lexical category characteristics and adjacency interdependence in relations and lexical category characteristics and tendentious glossary and tendentious matching adjacency interdependence relations characteristics, interdependence relations and the interdependence relations syntax plane word as the feature assemble of support vector machines (SVM) sorter, take the sentence to carry on the tendentious judgment to many domains texts as the unit. Through the way of cross validation, estimated that the precision of sorter is 95.6%, based on this proposed the sentence tendentiousness analysis does not take the sentence tendentiousness judgment as the premise.
文章结合兰渝铁路胡家湾隧道施工实践,对高速铁路大断面隧道洞口排水系统、边仰坡开挖及防护、导向墙施工、管棚进洞、洞身开挖、初期支护、防排水施工、二次衬砌等施工工序控制要点进行总结。的翻译是:The article in light of Lan Chongqing railroad Hujiawan tunnel construction practice, side the supine slope excavates and protection and guidance wall construction and tube awning to the high speed rail big cross section tunnel Dongkou drainage system enters the hole and hole body to excavate, initial supports and protections, against draining water constructions, two lining work and other construction process control main points to summarize.
公园是城市绿地系统的重要组成部分,由于种种原因,目前厦门公园绿化普遍存在植物群落结构简单、稳定性不高、养护成本居高不下等问题。针对此不足,公园管理者应加强模拟地带性植被在公园中建植的相关研究,进一步提高公园的绿化水平和在生物多样性保护等方面的功能。的翻译是:The park is the important component of urban green space system, for various reasons, the Xiamen park afforests at present generally has the plant community structure to be simple, stability not high, the maintenance cost stays at a high level and other issues. In view of this insufficient, the park superintendent should strengthen the simulation zonal vegetation the relevant research that constructs to plant in the park, further raises park afforested level and in protection of biodiversity and other of the functions.
目的探讨根据急性上消化道出血患者进行Rockall危险性积分实施分层管理的应用与效果。方法应用Rockall危险性积分对163例急性上消化道出血患者进行危险性评分,根据不同积分将患者分为低度危险组、中度危险组、高度危险组3组;护理管理者根据急性上消化道出血患者Rockall危险性积分将科室护理人员进行分层管理。结果依据急性上消化道出血患者Rockall危险性积分实施分层管理后,基础护理(94.50分)、危重患者护理(95.00分)、护理文书(94.00分)、健康宣教(90.00分)、患者满意度(94.58%),较未实施分层管理前都有明显提高。患者满意度调查显示分层管理后主动巡视病房、了解患者需求,及时帮助解决所遇问题,及时回应患者呼叫这3项满意度均为100%。结论依据急性上消化道出血患者Rockall危险性积分实施分层管理保障了科室的护理质量,提高了患者的满意度和护理人员对护理工作的满意度,有利于护理管理人才的培养。的翻译是:
煤气废水是一种难处理的高浓度有机废水,是危害严重的工业废水之一,酚类物质是其中最主要的有机污染物,毒性大、难降解。对煤气废水活性污泥振荡培养,经驯化、分离筛选出两株能转化间苯二酚和间甲酚的优势降酚菌,分别命名为JS-4和JD-2,对其进行特性研究(温度、pH值、外加碳源效应)正交试验,并进行原水降解试验。结果表明,温度条件对降解效果影响最大,其次是pH值条件,影响最小的是外加碳源,同时可知最优处理条件为:JS-4为温度30℃,pH值7,外加碳源量1 000 mg·L-1;JD-2为温度30℃,pH值7,外加碳源量500 mg·L-1;对原水中酚类物质降解试验显示,在前6 h,单一菌株JS-4降解效果好于混合菌株,经过一段时间的适应,混合菌株表现出良好的降解能力。的翻译是:
SQL Server2005数据库是应用较广的一种关系型的数据库,存储着大量的数据,一旦数据泄密或遭到破坏后果非常严重。探讨了SQL Server2005的安全机制、访问控制安全策略及安全管理策略。的翻译是:The SQL Server2005 database is application broad one relations database, is saving the massive data, once the data divulged a secret or encounters the destruction consequence to be serious. Has discussed the SQL Server2005 security mechanism and access control security policy and safety control strategy.
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