热门试题:
[判断题]当电容器的容量和其两端的电压值一定时,若电源的频率越高,则电路的无功功率越小。
A.正确
B.错误
[单选题](5821)HT20-40的HT表示( )。
A.HT—可锻铸铁
B.HT—球墨铸铁
C.HT—铸钢
D.HT—灰口铸铁
[简答题]CRH1型动车组如何进行钢簧压力机实验前检查?
[单选题]测定钢轨探伤仪的阻塞范围时,纵波直探头置于阶梯试块50mm厚度处,波幅达80%时,再将灵敏度提高( )观察波幅高度。
A.2dB
B.3dB
C.4dB
D.6dB
[单项选择]An invisible border divides those arguing for computers in the classroom on the behalf of students’ career prospects and those arguing for computers in the classroom for broader reasons of radical educational reform. Very few writers on the subject have explored this distinction—indeed, contradiction—which goes to the heart of what is wrong with the campaign to put computers in the classroom.
An education that aims at getting a student a certain kind of job is a technical education, justified for reasons radically different from why education is universally required by law. It is not simply to raise everyone’s job prospects that all children are legally required to attend school into their teens. Rather, we have a certain conception of the American citizen, a character who is incomplete if he cannot competently assess how his livelihood and happiness are affected by things outside of himself. But this was not always the case; before it was legally required for all children to att
A. included as an auxiliary course in school
B. highlighted in acquisition of professional qualifications
C. mastered through a life-long course
D. equally emphasized by any school, vocational or otherwise
[单项选择]
W: It’s well-known science fiction plot to freeze a body and bring it back to life years later.
However, this may no longer be so far from the truth. Joining us from our Cardiff studio is Professor Andrew Morgan, who’s been doing some research into this subject. Professor Morgan.
M: Yes, well, I’ve been looking into the ability of certain animals to freeze themselves for a certain amount of time, and then to come back to life when the circumstances around them change. And, what I’ve been working on over the past two years is the particular process that enables them to do this.
W: What have you actually discovered
M: I think it’s a particular chemical in the animals’ bodies which begins to work under certain circumstances. And I’m now experimenting with this chemical to see if I can get other animals that wouldn’t normally be able to freeze themselves to be able to do this.
W: Have you had any
A. It can be used to prolong everyone’s life.
B. It can help find cures for terminal illnesses.
C. It can cure cancer and Aids.
D. It can help freeze people with terminal illnesses and bring them back to life when the cure appears.
[单项选择]根据《素问·痹论》所述,以疼痛剧烈,固定不移为特点的痹证是()
A. 皮痹
B. 行痹
C. 痛痹
D. 著痹
E. 筋痹
[简答题]采用建构认知模型方法进行思维的研究一般要经历哪些步骤?
[判断题]电能表、互感器的检定原始记录至少保存三个检定周期 ( )
A.正确
B.错误
[多项选择]化学试卷命题导向及特点()
A. 试题的形式多样,主观.开放性试题适当增加,试卷编排图文并茂
B. 注重对基础知识.基本技能的考查,但是形式不变
C. 重视联系学生生活实际和社会实际,反映化学.技术与社会的相互影响,渗透对情感态度价值观的考查
D. 关注过程与方法的培养目标,积极探索对课本知识的考查
[多项选择]下列各项中,应当通过营业外支出核算的有()。
A. 对外捐赠支出
B. 处理固定资产净损失
C. 违反经济合同的罚款支出
D. 债务重组损失
E. 因债务人无力支付欠款而发生的应收账款损失
[单选题]钢炉水冷里管内壁结垢后可造成( )
A.传热增强,壁温升高
B.传热减弱,管壁温度降低
C.传热减弱,管壁温度升高
[单项选择]The little boy first took off one shoe and then took off______.
A. another
B. other
C. the other
D. each other
[判断题]在冠字号码查询业务中,查询人可在接到查询结果通知书后5个工作日,可以申请再查询。
A.正确
B.错误
[单选题]在全电路中,负载电阻增大,端电压将( )
A.增高
B.减少
C.不变
D.成倍增加
[填空题]凡局管内编组始发的空重混编货物列车(含单机挂车)除另有特殊规定外,列车尾部最后一辆不准编挂空罐车和<--NRC-->
[多选题]青春期自我意识发展的特点有( )
A.强烈关注自己的外貌和风度
B.深切重视自己的能力和学习成绩
C.强烈关心自己的个性成长
D.有很强的自尊心
[简答题][2022-03-06 17:59:24.699
[判断题]手机可以放置在生产现场充电( )
A.正确
B.错误
[单选题]动车组质量鉴定的鉴定故障分四类,其中D类每处每件扣( )分。
A.A.5
B.B.10
C.C.20
D.D.100
[多选题]关于曲线钢轨磨耗,以下说法错误的是。
A.随着曲线长度增大而增大
B.随着曲线半径的减小而增大
C.随着曲线半径的增大而增大
D.随着曲线转角的增大而增大
E.略
[多选题]关于物质结晶点与物质纯度关系的理解,正确的是( )。
A.纯物质有固定不变的结晶点
B.物质含有杂质则结晶点降低
C.纯物质的结晶点是一个温度范围
D.物质含有杂质则结晶点升高
[判断题]由于编制的记账凭证会计科目错误,导致账簿记录错误,更正时,可以将错误的会计科目划红线注销,然后,在划线上方填写正确的会计科目。
[判断题]禁止将电缆垂直敷设于管道的上面或下面。 ( )
A.正确
B.错误
[判断题]( )手工钨极氩弧焊设备中没有水路系统。
A.正确
B.错误
[多选题]风险监督工作包括()、风险作业控制结果、人员到岗到位情况。
A.作业实际开始时间
B.控制措施落实情况核查
C.作业进程
D.作业实际结束时间
E.略
F.略
[单选题]一个黄色闪光和一个黄色灯光--准许列车经()及以上道岔侧向位置,进入站内越过次一架已经开放的信号机且该信号机防护的进路经道岔直向位置或()及以上道岔侧向位置
A.16号
B.17号
C.18号
D.19号
[单选题]以下车位开发商可向业主销售的是()
A.人防工程车位
B.占公摊面积的车位
C.公共配套车位
D.开发商名下,不占公摊面积的车位
[多选题]下列白酒中属于酱香型白酒的是( )。
A.五粮液
B.郎酒
C.茅台酒
D.汾酒
[单项选择]机械制造含高氯酸盐引火线的每栋工房内不得超过( )台机组。
A. 1
B. 2
C. 3
D. 4
[单项选择]阅读以下文字,完成下列问题。
跟电视一样,收视率对中国的电视和广告行业而言,是个地地道道的舶来品,在中国的应用不过短短二十余年。由于这是一个全新的行业指标,因此不仅国内开展此类业务的经验还有待摸索和积累,而且对这一领域进行深入研究的专家和机构也少之又少。如此一来,在当前收视率已经被看作电视、广告行业的通行货币的情况下,促进收视率调查的公开、透明和公平,就显得尤为迫切。根据美国、英国等开展该项业务较早的国家的经验,要真正实现收视率调查的公正、可信,不仅需要收视率调查机构本身的科学方法和诚信态度,更需要行业主管部门的监管调控及社会公众的积极参与。而对于今天的中国来说,通过一组报道,让更多公众知道了收视率这个行业术语,了解了收视率调查的方法,未尝不是一个良好的开端。
另一方面,在获得了准确可信的收视率后,更为重要的恐怕是如何看待和使用收视率。说到底,收视率只是一个可供行业参考的数据,任何对其本身的攻击都只是______,而如何将它用得科学、用得合理,却完全关乎从业人员的态度。
实际上,与收视率一样,在文化产业快速发展的今天,网络点击率、电影票房、图书销售量、剧院上座率等等一系列数字,也越来越多地被提及,俨然将成为衡量文化产业各门类发展水平的唯一标准。殊不知,文化产品质量的优劣,文化产业发展水平的高低,却远不是几个简单的数字就可以量化评估的。一味地追求与商业利益挂钩的数字效应,不仅不能反映产业发展的真实面貌,还难免使产业发展走向歧途。从这个意义上说,收视率造假事件给我们带来的启示,不仅要警惕“惟收视率是瞻”,更要警惕整个文化产业发展过程中的“惟数字是瞻”。
填入文中第2段划线处最恰当的一项是( )。
A. 欲加之罪
B. 以偏概全
C. 欲盖弥彰
D. 推波助澜
[判断题]安全帽使用时,应将下颏带系好,防止工作中前倾后仰或其他原因造成滑落。
A.正确
B.错误
[判断题](43949)( )成段更换钢轨时,应确保扣件、零部件齐全、有效、扭力矩达标。
A.正确
B.错误