热门试题:
[单项选择]
NASA is releasing several images taken by the Hubble Space Telescope, which is the closest yet look at the red planet. Altogether there are four images, which show the entire planet. Each view shows the planet as it completes one quarter of its daily rotation. In these views the north polar cap is turned toward the Earth and is clearly visible at the top of each picture. The images were taken in the middle of the Martian northern summer, when the polar cap was at its smallest size. During this season the sun shines continuously on the polar cap. Previous spacecraft observations have shown that this summertime polar cap is composed of water ice, just like Earth’s polar caps.
The Hubble Telescope pictures reveal that great changes have occurred on the surface of Mars in the past 20 years. The Martian surface is ever changing. Some regions that were dark 20 years ago are now bright red; some areas that were bright red are now dark. Winds move sand and dust from region
A. Vague.
B. Clear.
C. Cannot be seen.
D. Barely visibl
[多选题]反洗钱行政主管部门和其他依法负有反洗钱监督管理职责的部门、机构从事反洗钱工作的人员有下列行为之一的,依法给予行政处分:( )。
A.违反规定进行检查、调查或者采取临时冻结措施的
B.泄露因反洗钱知悉的国家秘密、商业秘密或者个人隐私的
C.违反规定对有关机构和人员实施行政处罚的
D.未按照规定建立反洗钱内部控制制度的
[单选题]不是变压器技术参数的是()
A.额定容量
B.额定电流
C.额定频率
D.额定电阻
[判断题]注销房屋权属证书,登记机关需收回原发放的房屋权属证书,以免贻害他人。( )
[单选题]氯气脱水采用的工艺方法是( )。
A.冷却法
B.吸收法
C.冷却吸收法
D.固碱吸收法
[单项选择]
There is a lot of argument between people who believe in the truth of old weather rhymes (韵文) and people who are reluctant to believe in them. The first group thinks the rhymes are helpful, but many others say that they are just silly devices that are more confusing than useful. For example, one rhyme says, "Red sky at morning, sailors take warning. Red sky at night, sailors “delight.” What would it mean The disbelievers ask, if a red sky at night was followed by a moon with a ring around it Are you supposed to discard one of the signs Or perhaps you should dismiss both signs as an oddity of nature. Probably the best idea is to admit that it is an illusion that rhymes can predict the weather and go to bed.
In spite of these problems, people who believe in weather sayings continue to take them seriously. Sometimes they are actually unhappy when the signs do not tell them what they want to hear. On February 2, if the groundhog comes out of its den, sees its
A. should not be taken seriously
B. are extremely helpful in predicting the weather
C. have a scientific basis
D. are more confusing than useful
[判断题]柱上变压器台架工作,应先断开变压器台架的高压线路的隔离开关(刀闸)或跌落式熔断器,再断开低压侧的空气开关、刀开关,高低压侧验电、接地后,方可工作。
A.正确
B.错误
[单项选择]张骞创办博物馆的指导思想是()。
A. 设院为教
B. 娱乐大众
C. 增强民族凝聚力自信心
[单项选择]《铁路路风管理办法》规定,利用()贩物品。属违规贩运行为。
A. 列车
B. 铁路列车
C. 货物列车
D. 旅客列车
[判断题]5.219.第219题在比对数据尚未正式公布之前,所有与比对相关的实验室和人员可以与其他参加实验室交流比对数据,但不
得在刊物上公布。()
A.正确
B.错误
[多选题]旅客列车停靠的高站台边缘距线路中心线的距离为( ),安全标线距站台边缘( )。
A.1100mm
B.1750mm
C.1745mm
D.1000mm
[判断题]列车在线路所通过信号机(出站、进路信号机)前临时停车,待停车原因消除且继续运行时其他列车乘务人员使用紧急制动阀(紧急制动装置)停车时,由车站值班员通知司机开车。XG75) ( )
A.正确
B.错误
[单项选择]Since the industrial revolution, government, society, and industry have attempted to channel technological progress in useful directions. Whether it is the printing press, the cotton gin the automobile or the Internet, technological innovations often have profound economic and social effects. To harness the benefits and minimize the more harmful effects of new technologies, modern governments use four basic approaches: specific direction, market incentives, criminal prohibition, and behavior modification.
Specific direction starts with governments identifying one or more key factors in the R&D phase. Then, using a variety of means ranging from administrative regulation to outright state ownership, the government seeks to control the implementation of the technology.
Market incentives are the deliberate manipulation of the market by the government to control how a particularly technology is distributed and used. For example, some governments impose taxes to cover the hidden co
A. help raise commodity prices to give government a bigger revenue.
B. help the government encourage more researchers to make technological innovations.
C. help raise oil prices so as to cut gasoline consumption and Protect our environment.
D. help the government give subsidies to private enterprises to build more advanced highways.
[单选题]发生火灾时,尽量贴近地面撤离,这样做的主要原因是( )。
A.看清楚地面上有没有障碍物
B.防止发生踩踏事故
C.燃烧产生的有毒气体离地面近的地方浓度较低,相对不容易中毒
[判断题]绝缘材料的击穿包括电击穿、电化学击穿和热击穿。
A.正确
B.错误
[单项选择]平均总成本处于最低点的条件是()。
A. 平均固定成本等于平均变动成本
B. 边际成本等于变动成本
C. 边际成本等于平均总成本
D. 平均可变成本等于平均总成本
[单项选择]采用负荷实验评价成人维生素B,营养状态时
维生素B1经口给予的剂量为
A. 3mg
B. 4mg
C. 5mg
D. 8mg
E. 10mg
[单选题]( )级维修负责人由工(班)长担当。
A.Ⅰ
B.Ⅱ
C.Ⅲ
[不定项选择题]男,28岁,受凉后发热、咳嗽、咳痰一周,气促2天,意识模糊一小时,查体:T 39.8℃,血压80/50mmHg,口唇发绀,双肺可闻及较多湿啰音,心率109次/分,未闻及杂音,四肢冷,血常规WBC 21×109/L。
该患者经过抗感染等综合治疗后症状有所改善,血压100/60mmHg,动脉血气分析(面罩吸氧5L/分钟)提示:PaO2?50mmHg,PaCO2?28mmHg,HCO3-?16mmol/L。此时首先选择的措施是( )。
A.静脉点滴糖皮质激素
B.静脉点滴呼吸兴奋剂
C.静脉点滴丙种球蛋白
D.静脉点滴碳酸氢钠
E.机械通气
[单项选择]资本存量流动不畅的主要原因,是()。
A. 市场因素
B. 资本存量本身的差异性
C. 体制原因
D. 投资结构
[单选题]增压系统的控制模式有:
A.AUTO 1
B.AUTO 2
C.MAN
D.以上均可
[单选题] ( )是党执政的最大底气,也是党执政最深厚的根基
A. 政党
B. 人民
C. 经济
D. 制度
[单项选择]男性,78岁。喘促日久,动则喘甚;呼多吸少,气不得续,形瘦神疲,跗肿,汗出肢冷,面青唇紫,舌淡苔白脉沉弱。若见喘息面红,咽干烦躁,足冷,汗出如油等症,可加()
A. 龙骨、牡蛎
B. 磁石
C. 紫石英
D. 紫河车
E. 人参
[填空题]2008年在第七届“茅盾文学奖”的四部获奖作品中,贾平凹的《秦腔》、()的《湖光山色》、迟子建的《额尔古纳河右岸》都是以乡村的现状和历史为主题的作品。
[简答题]结合给定材料所反映的问题,自选角度,自拟题目,写一篇议论文。要求:1.就你论述的问题,参考背景材料;应进行恰当的阐述;2.观点明确,分析具体,条理清楚,语言流畅;3.字数在 1000-1200字。
[多项选择]行政行为的分类方法很多,依不同的标准可以划分为()。
A. 抽象行政行为与具体行政行为
B. 积极行政行为与消极行政行为
C. 羁束行政行为与自由裁量行政行为
D. 单方行政行为与双方行政行为
E. 作为行为与不作为行为
[单项选择]在特定计量领域内复现和保存计量单位,并具有较高计量特性的计量器具是()。
A. 计量基准器具
B. 计量标准器具
C. 国家标准器具
D. 工作计量器具
[单项选择]()年,心理学家Bar-On第一个使用“EQ”这个名词.
A. 1981
B. 1984
C. 1988
D. 以上皆不是
[单选题]关于利多卡因,下述哪一项是错误的
A.促进复极相 K+外流,APD缩短
B.抑制4相Na+内流,降低自律性
C.加快缺血心肌的传导速度
D.主要作用于心室肌和浦氏纤维
E.其余选项
[单项选择]带状疱疹的病原菌是
A. 肠道病毒
B. 单纯疱疹病毒
C. 腺病毒
D. 柯萨奇病毒
E. 水痘-带状疱疹病毒
[多选题] 需要进行人身检查的在押人员包括( )。
A. 因提解出监区后返回的在押人员
B. 因开庭出监区后返回的在押人员
C. 因就医出监区后返回的在押人员
D. 因提审未出监区的在押人员
[多选题]无证或违规设备操作可能导致后果有哪些()(综合机电部2020年安全风险数据库2.0版)
A.SC机械伤害
B.SE触电
C.SN其他伤害
D.SI高处坠落
[填空题]采用纸质登销记时(不含粘贴登销记),如发现登记内容不标准、不正确或有<--NRC-->处以上涂改,不得签认,应在登记内容处加盖“作废”章,重新登记。
[判断题]> 通常情况下,下加热的供热量大于上加热。( )
A.正确
B.错误
[单选题]《上海铁路局长大隧道突发事件应急处置预案》(上铁运〔2015〕195号)规定:列车工作人员要始终处于疏散旅客的( ),随时指挥,防止旅客盲目疏散和发生其它意外伤害
A.最前端和后端
B.周围
C.中间
D.最前端
[单选题]以下为乳核肿块特点,除了
A.生长缓慢
B.活动度好,表面光滑
C.按之如橡皮球
D.乳房皮肤有橘皮样改变
E.妊娠期可迅速增大,排除恶变者
[单选题]在党的地方各级代表大会和基层代表大会闭会期间,上级党的组织认为有必要时,可以______或者指派下级党组织的负责人。( )
A.调动
B.巡视
C.罢免
D.选举