热门试题:
[单项选择]机器的功率一般是指（）。
A. 总功率
B. 输出功率
C. 有效功率
D. 额定功率
[单项选择]深冷装置调整过程中冷箱E0301的塔底再沸线主要是通过（）来实现正常循环的。
A. 自然循环
B. 强制循环
C. 排放
D. 其他方法
[多选题]供电企业对查获的窃电者，应（ ）
A.予以制止并当场中止供电
B.上报上级领导后再予以处理
C.窃电者按所窃电量补交电费即可
D.窃电者除补交电费外，还需承担违约使用电费
[单项选择]患者男性，31岁，尿频、尿急、尿痛3年，检查：贫血貌，尿沉渣脓细胞（++++），红细胞（++），血尿素氮30mmol/L，排泄性尿路造影两肾未显影，膀胱容量30ml左右。首先考虑诊断为（）
A. 慢性膀胱炎
B. 双肾积水
C. 一侧肾结核，对侧肾积水
D. 双肾结核
E. 慢性肾盂肾炎
[单选题]由国务院部门负责处置的特别重大突发公共事件和跨省级行政区划的重大突发公共事件,由( )发布有关信息。
A.国务院
B.国务院主管部门
C.安监总局
D. 国务院应急管理办公室
[单选题]事故现场有易燃易爆气体或有毒有害物质扩散时,在扩散区( )选择进攻路线接近扩散区。
A.上风.侧上风方向
B.上风方向
C.下风.侧上风方向
D.下风方向
[单项选择]
Organised volunteering and work experience has long been a vital companion to university degree courses. Usually it is left to (62) to deduce the potential from a list of extracurricular adventures on a graduate’s resume,(63) now the University of Bristol has launched an award to formalise the achievements of students who (64) time to activities outside their courses. Bristol PLuS aims to boost students in an increasingly (65) job market by helping them acquire work and life skills alongside (66) qualifications.
"Our students are a pretty active bunch, but we found that they didn’t (67) appreciate the value of what they did (68) the lecture hall," says Jeff Goodman, director of careers and employability at the university. "Employers are much more (69) than they used to be. They used to look for (70) and saw it as part of their job to extract the value of an applicant’s ski
A. dominantly
B. earnestly
C. necessarily
D. gracefully
[不定项选择题]Cats have the widest hearing range of nearly any mammal”not only can they perceive sound in what we define as the “ultrasonic” range, they can also appreciate all the bass Dr Dre can throw at them. They can swivel their whiskers forwards while hunting to provide a kind of short-range radar.And they can see exceptionally well in the dark thanks to a reflective surface behind the retina that bounces lightback, giving it a second chance to hit a photoreceptor. They see more distinct images per second than we do.
Dog partisans will appeal to the dog’s allegedly superior intelligence — though if that were the primary criterion for choosing a pet, one would expect to see a lot more crows and squid on leads around town. In fact, cats are rather cleverer than commonly assumed, as the biologist and animal-behaviour expert John Bradshaw shows in his new book.They can even be trained to an extent which was news to me Bradshaw’s book mixes pellets of cat lore with accounts of feline evolution, anatomy, genetics and development from newborn kitten to adulthood, plus descriptions of cat-psychology experiments in the laboratory, many of which he has conducted himself. Some of the most interesting parts indicate holes in our current scientific knowledge. “Many mother cats try to move their litters at least once before they wean them,” he observes, “but science has yet to find out why”. No one knows why cats go crazy for catnip, nor why they are able “to classify shapes according to whether they are closed or open.” Kittens, meanwhile, “may also use special movements of their tails to signal playfulness, but so far no scientist has been able to decode these”. As far as potential research projects go, decoding the tail-language of playing kittens must be about the interesting unsolved problem in science.
The cat is an apparently phlegmatic beast, but Bradshaw points out that cats experience strong emotions, and sometimes might be suffering in silence. They aren’t particularly sociable, and cats who are housed with others who weren’t litter-mates — perhaps by well-meaning owners who think they need the company — can become chronically stressed.
Luckily, then, cats probably aren’t aware that today they are once again hate-figures, the furry target of spittle-spraying ecologists who, armed with dodgy statistics, accuse cats of wildly “murdering” all the country’s songbirds. It’s a bit more complicated than that,Bradshaw shows. Rats also kill songbirds, and cats keep their numbers down; while the RSPB says the disappearance of habitat is a far more important factor in the decline of songbird populations than predator numbers. But we could at least, Bradshaw suggests, reverse the counterproductive selection pressure we currently exert on the domestic cat when we neuter house cats before they reproduce. This means,he explains, that the “friendliest, most docile” cats are prevented from leaving any descendants, while wild cats —which are more suspicious of humans and better at hunting— will leave more offspring. Unintentionally, we are causing cats to evolve into animals society won’t like as much
Cat-haters probably won’t appreciate this book, but anyone else might. It is written in a friendly and engaging way, has helpful tips for cat owners, and is packed with excellent cat facts. Why, you might have wondered, do cats get stuck up trees? Because all their claws face forwards, so none can be used as brakes on the descent. We all know how good cats are at twisting mid-air to land on their feet,but they have an even more impressive trick: some cats adopt a “parachute” position during a long fall, with all four legs stuck out to the side, before coming back to the landing position at the last moment. This cat-parachute pose,Bradshaw calculates, “limits the falling speed to a maximum of fifty-three miles an hour” so enabling some cats to fall from high-rise buildings and walk away unhurt. I’d like to see a dog try that.
What can be inferred about cats from Bradshaw’s research?
A.Cats’ whiskers can aid them to confuse preys.
B.Cats can detect sounds far away from them.
C.Cats can process images better than we do.
D.Cats’ intelligence has been underestimated.
[简答题]举例说明辛弃疾的词是如何运用比兴手法的。
[单项选择]子嗽的治则应是
A. 养阴润肺，止咳安胎
B. 辨证施治，兼顾安胎
C. 疏风止咳，兼以安胎
D. 抑肝清肺，佐以安胎
E. 清热化痰，止咳安胎
[判断题]货运营业站查获的危险货物在有关部门作出指示之前应妥善保管，设有危险货物仓库的，应存入仓库。（）
A.正确
B.错误
[单项选择]借款人应当是经工商行政管理机关核准登记的企业法人、事业法人、（）、个体工商户或具有中华人民共和国国籍的具有完全民事行为的自然人。
A. 其他经济组织
B. 私营企业
C. 三资企业
D. 有限责任公司
[多项选择]生产企业出口自产产品，可能会涉及到的会计科目有( )。
A. 应交税费—应交增值税(减免税款)
B. 其他应收款—应收出口退税款(增值税)
C. 应交税费—应交增值税(进项税额转出)
D. 应交税费—应交增值税(出口退税)
E. 应交税费—应交增值税(出口抵减内销产品应纳税额)
[多项选择]新方法论与成本效益分析的主要区别在于（）。
A. 旧方法是以国内价格作为项目评价的基础，新方法论着重把国际市场价格及各种汇率作为价值准则
B. 旧方法注重项目对于社会分配的影响，新方法论兼顾了项目对于社会生产和社会分配的
C. 旧方法忽视项目对于社会分配的影响，新方法论兼顾了项目对于社会生产和社会分配的
D. 旧方法假设国家政策是既定的，孤立地考虑项目，新方法论则从宏观和微观两方面进行
E. 旧方法大体采用的是局部均衡分析，新方法论则着眼于一般均衡的分析
[单选题]在审核期间.如果受审核方存在发生了与环境污染等有关的事故/事件和(或)引起新闻 媒体及社会关注的事故/事件信息.应及时向( )报告。
A.认证机构
B.方案管理人员
C.认证监管部门
D.当地执法部门
[单项选择]清孔孔内排出或抽出的泥浆手摸无（）的颗粒。
A. 2～3mm
B. 1～3mm
C. 1～2mm
[单项选择]下列关于内心信念的提法中，错误的是（）。
A. 它是医学道德的评价方式之一
B. 它是医务人员依据一定的医德原则和规范形成的医德信念
C. 它是一种自我评价方式
D. 它是一种自我的力量
E. 它具有广泛性特点
[单选题]《建筑起重机械安全监督管理规定》规定,不是监理单位安全职责的是()。
A.审核建筑起重机械安装、拆卸工程专项施工方案
B.审核建筑起重机械安装单位、使用单位资质的证书
C.审核建筑起重机械安装单位、使用单位资质的安全生产许可证
D.审核建筑起重机械安装单位、使用单位资质特种作业人员的特种作业操作资格证书
[多项选择]刘敏因债务纠纷，为了躲避债务，离家出走到外省务工为生，一直未与家人联系。 8年后因思念家乡回到家中，得知一年前其妻祝延已向法院申请宣告其死亡并改嫁张华，刘敏与祝延的9岁女儿刘利已由安丽收养，闲置的住房被村办工厂占用。刘敏可以行使以下哪些权利并会得到支持( )
A. 申请法院撤销死亡宣告
B. 请求法院确认祝延与张华的婚姻关系无效
C. 请求法院判令解除安丽对刘利的收养关系
D. 要求村办工厂归还占有的住房
[单选题]对动臂变幅的塔式起重机，当吊钩装置顶部升至起重臂下端的最小距离为800mm处时，( ) 应动作，起升运动立即停止。
A.起升高度限位器
B.起重力矩限制器
C.起重量限制器
D.幅度限位器
[简答题] "胶接绝缘接头拉开及失效时的处理方法？
[不定项选择题]A.酸
A.碱
B.水
C.乙醇
D.表面活性剂
E.可促进生物碱浸出的是
[单选题]正常运行时，因不可抗力导致焚烧炉炉膛温度低于850℃的时段，可标记为()。
A.热电偶故障
B.炉温异常
C.通讯中断
D.烟气排放连续监测系统维护
[判断题]凡影响行车的施工维修，均应设置防护。
A.正确
B.错误
[单项选择]静电危险影响计算时，在计算电信线路与接触网间接近段等值距离的经验公式中，Un的取值为（）。
A. 29kV
B. 27.5kV
C. 25kV
D. 21.5kV
[单选题]卸气前操作人员将高压卸气软管与槽车主控阀进行连接，加戴软管( )，防止软管甩动发生意外。
A.保护钢绳
B.接地线
C.保护器
D.保护管
[判断题]对于遗体接运工，消毒是一项必须掌握的基本技能，它的意义在于有效保护公共环境不受病菌侵害和保障人民群众的生命安全。
[多选题]安全生产委员会主任由本单位的( )担任，其他（ ）和有关部门主要负责人为成员。并设立安全生产委员会办公室，挂靠同级安全监管部门，作为安委会的日常办事机构。
A.安全生产主要负责人
B.安全生产第一责任人
C.分管负责人
D.重要负责人
[简答题]链主要用于一般机械中传递运动和动力,也可用于输送等场合,应用范围最广泛。
[多选题]1-某矿发生瓦斯爆炸，其火源判定为电源引入装置的失爆。一般电源引入装置失爆的现象有（）
A.密封圈隔开套在电缆上
B.密封圈内径与电缆外径只差大于1mm
C.密封圈老化、变形
D.能轻易来回抽动电缆
E.喇叭嘴明显晃动
[多项选择]税务机关根据法律法规规定的征税范围、征税对象以及税种、税目、税率来进行税收征管的行为属于( )。
A. 羁束行政行为
B. 自由裁量行政行为
C. 单方行政行为
D. 双方行政行为
[判断题]劳动保护的对象首先是保护从事生产的劳动者。()
A.正确
B.错误
[单项选择]机油压力过低，会造成发动机（）。
A. 润滑不良
B. 磨损减小
C. 润滑良好
D. 磨损不变
[多项选择]实验流行病学研究与定群研究的共同点有（）。
A. 都属于病因研究
B. 都是在现场选择实验对象
C. 都要求试验组（暴露组）和对照组有均衡性、可比性
D. 都采取了人为干预措施
E. 都是在自然情况下选择某因素进行观察
[单项选择]下列哪项不是深二度烧伤的特点（）。
A. 创面可有或无水泡
B. 有时可见树枝状栓塞血管
C. 愈合后多遗有增生性瘢痕
D. 创面痛觉迟钝
E. 如无感染，3～4周愈合
[单项选择]内燃机油的粘度指数一般不应低于（）。
A. 50
B. 60
C. 70
D. 80
[单选题]二氧化碳的伤害途径为（）。
A.皮肤接触吸收
B.消化道食入
C.呼吸道吸入
