热门试题:
[判断题]CRH5A(G)型、CRH-380BG型手动关门流程:使用钥匙旋转90°,车门自动关闭。
A.正确
B.错误
[单项选择]急性蝶窦炎的头痛特点是()。
A. 上午头痛重
B. 下午头痛重
C. 枕部头痛重
D. 持续头痛、夜间重
E. 不规律、无定位的头部胀痛
[判断题]甲醇温度高会导致其吸收酸性气体能力下降。( )
A.正确
B.错误
[单项选择]
Health implies. more than physical fitness. It also implies mental and emotional wellbeing. An angry, frustrated, emotionally (1) person in good physical condition is not (2) healthy. Mental health, therefore, has much to do (3) how a person copes with the world as it exists. Many of the factors that (4) physical health also affect mental and emotional well-being.
Having a good self-image means that people have positive (5) pictures and good positive feelings about themselves, about what they are capable (6) , and about the roles they play. People with good self-images like themselves, and they are (7) like others. Having a good self- image is based (8) a realistic (9) of one’s own worth and value and capabilities.
Stress is an unavoidable, necessary, and potentially healthful (10) of our society. People of all ages (11) stress. Children begin to (12) stress during prenatal d
A. tolerate
B. sustain
C. experience
D. undertake
[多选题]道口发生故障时,有直通车站电话或列车无线调度电话,立即通知(),如有连通相邻道口的电话,可让其代设置停车信号防护。
A.车站
B.机车乘务员
C.驻站防护员
D.现场防护员
[单选题]脑损伤患者护理措施 错误的是 ( )
A.禁用吗啡止痛
B.躁动患者可给予镇静剂
C.意识清醒着使用斜坡窝位
D.昏迷者禁食 用鼻饲流质
[单项选择]按规定计算代扣代交职工个人所得税,应贷记的会计科目是( )。
A. 应交税费
B. 其他应付款
C. 应付职工薪酬
D. 银行存款
[多选题]《中国铁路上海局集团有限公司铁路旅客电子客票实施细则(暂行)》(上铁客〔2020〕180号 )规定,为做好铁路电子客票条件下的客运组织工作,规范电子客票()和乘车等业务,依据《国铁集团关于印发<铁路旅客电子客票暂行实施办法>的通知》(铁客[2020]105号),特制定本细则。
A.售票
B.退票
C.改签
D.进出站
[判断题]有限空间作业单位应组织制定专项作业方案、安全作业操作规程、事故应急救援预案、安全技术措施等有限空间作业管理制度。
A.正确
B.错误
[判断题]根据设计可采用工字钢或槽钢作为悬挑梁,悬挑梁的大小与长度由设计决定,但需保证悬挑梁的固端长度不小于1.1倍的外挑长度。
A.正确
B.错误
[不定项选择题]共用题干
Electromagnetic Energy
1 White light seems to be a combination of all colors.The energy that comes from a source of light is not limited to the kind of energy you can see.Heat is given off by a flame or an electric light.On a cloudy day it is possible to get a sunburn even though you feel cool.Visible light and the kinds of energy that produce warmth and sunburn are examples of electromagnetic energy.
2 The sun is 93 million miles from the earth.Yet we can use energy from the sun because electromagnetic energy travels through space.
3 Many other kinds of energy are also types of electromagnetic energy.Radio,television,and radar signals travel from transmitters to receivers as low-energy electromagnetic waves.Infrared(红外线的)radiation is an electromagnetic wave.When it is absorbed by matter,heat is produced.Waves of infrared and visible light have more energy than waves of radio,television,or radar.Ultraviolet rays(紫外线)and X-rays are electromagnetic waves with even greater amounts of energy.Infrared radiation is used in cooking food and heating buildings. Sunlight and electric lights are part of our requirements for normal living.Ultraviolet radiation is useful in killing certain disease organisms.X-rays and gamma rays have so much energy that they travel through solid objects. They can be used to detect and treat cancer.X-rays are used in industry to find hidden cracks in metal,and in medicine to reveal broken bones.
4 Usually we use electricity to generate electromagnetic energy.The source of most of our energy is the sun.Heat from the sun causes water to evaporate.When the water falls to the earth as rain,some of it is trapped behind dams and then used to operate electric generators.Other generators are powered by coal,but the energy stored in coal came from the sun,too.
5 Until recently,the source of the tremendous amount of energy given off by the sun was a puzzle.If the sun depended on chemical reactions,it would have used up all its energy long ago.Experiments with electromagnetic radiation led to the theory that mass can be converted into energy.About forty years after the theory was proposed , nuclear energy was harnessed(利用)by man.Chemical energy comes from electron (电子)rearrangement.Nuclear energy comes from a change in the nucleus of an atom.Compared with chemical reactions,nuclear reactions release millions of times more energy per pound of fuel.We now believe that the sun's energy comes from the nuclear reactions in which hydrogen is changed into helium(氦).
6 Nuclear energy is beginning to compete with coal as an economical source of'power to generate electricity.It is also being used to operate engines in large ships.Scientists continue to seek new and better methods of obtaining and using energy.
Infrared radiation can produce heat______.
A.when it is absorbed by matter
B.when it is cloudy
C.because they can pass through solid objects
D.when the sunrays are fierce.
E.when a change in the nucleus of an atom takes place
F.when electron rearrangement takes place
[单项选择]疖病常见于
A. 糖尿病病人
B. 肝炎病人
C. 胃癌病人
D. 胃溃疡病人
E. 血管病病人
[单项选择]下列选项中,属于政府财政会计预拨款项的是()。
A. 一般预算支出
B. 基建拨款
C. 基金预算支出
D. 专用基金支出
[多选题]插花创作步骤为( )。
A.高低错落
B.疏密有致
C.虚实结合
D.俯仰呼应
E.上轻下重
F.上散下聚
[单项选择]能够反映出财政的强制性特征的是()
A. 国债
B. 政府投资
C. 税收
D. 国家预算
[单项选择]为使日期型数据库能够显示世纪(即年为4位),应该使用命令( )。
A. SET MARK ON
B. SET DATE ON
C. SET CENTURY ON
D. SET STRICTDATE ON
[判断题]进入高温高湿、强热辐射和有爆炸危险区域时,应着消防隔热服、消防避火服或防爆服,佩戴防高温手套,着防静电内衣。(( ))
A.正确
B.错误
[单选题]TMS系统乘车率数据,是根据从各车辆的制动控制装置获取的()进行计算。
A.总风压力
B.制动压力
C.保持制动压力
D.空簧压力
[单选题]关于使用混凝土及砂浆搅拌机规定描述错误的是( )。
A.搅拌机应安置在坚实的地方,不准以轮胎代替支撑
B.运转时,禁止将工具伸进滚筒内
C.切断电源,停运后。进入滚筒时,外面应有人监护
D.进料斗升起时,人员在监护下可在料斗下通过
[单项选择]下列统计处理中,属于推断统计的是()。
A. 利用统计图表展示GDP的变化
B. 利用增长率描述人均可支配收入的基本走势
C. 利用抽样调查数据估计城镇居民人均消费支出水平
D. 利用统计表描述公司员工的年龄分布
[判断题] 特种作业操作证每三年复审一次。
A.正确
B.错误
[判断题]联合保养时保养完毕后,由于生产任务比较紧,可以先开机,然后再让维修和工程师确认。( )
A.正确
B.错误
[单选题]A公司向B银行申请贷款1000万元,由C公司提供保证担保,保证合同约定C公司的保证期间为主债务履行期限届满之日为止,根据《民法典》相关规定,该保证合同的保证期间为主债务履行期限届满之日起()。
A.三个月
B.六个月
C.一年
D.两年
[单项选择]以教师讲解学生领会为主要特征的教学水平是属于()
A. 记忆水平
B. 解释性理解水平
C. 探究性理解水平
D. 应用水平
[多选题] 带电作业工作票签发人或工作负责人认为有必要时,应组织有经验的人员到现场勘察,以确定()。
A.应采取的措施
B.所需的工具
C.开始作业时间
D.能否进行带电作业
E.作业的方法
[不定项选择题]A.肾小管对该物质有分泌作用
A.肾小管对该物质有重吸收作用
B.两者均有
C.两者均无
D.某种物质的血浆清除率大于肾小球滤过率时意味着( )。
[判断题]石油沥青主要技术性质比煤沥青差,建筑工程上较少使用,但其抗腐蚀性能较好,常用于作防腐级地下防水层。
A.正确
B.错误
[填空题]采用(预)购电交费方式的,应与电力客户签订(____)协议,明确双方权利和义务。
[多项选择]农用地的分等单元划分需要遵循()原则。
A. 单元之间的土地特征差异明显
B. 单元内部的土地特征相似
C. 反映土地质量的差异
D. 单元边界应采用控制区格局的地貌走向线和分解线。
E. 单元边界不跨越地块边界
[多选题]以下时间概念表述正确的是( )。
A.操作时间:指某一炭化室从推焦.平煤.关上小炉门再至下一炉开始摘门所需的时间
B.正常结焦情况下每炉操作时间一般为10~15分钟
C.周转时间=每炉操作时间X孔数+检修时间
D.结焦时间是煤在炭化室内高温干馏的时间
[单选题]对于需要停电的工作,在编制工作任务单的同时编制停电申请单,申请单中不要求明确( )。
A.调度部门批复的停电时间
B.停电工作内容
C.停电范围
D.工作班组
[单选题]购人或者来购代理机构应当自中标通知书发出之日起( )内退还未中标人的投标保证金,自采购合同签订之日起(B)内退还中标人的投标保证金或者转为中标人的展约保证。
A.5日.5日
B. 5个工作日.5个工作日
C.10.10日
D.10个工作日.10个工作日
[单项选择]目前工业上最常用的烷基化催化剂是()
A. 浓硫酸和氢氟酸
B. 无水氯化铝和硅酸铝
C. 浓硫酸和磷酸
D. 氟化硼和浓硫酸
[单项选择]属于腹膜内位器官的是()
A. 十二指肠降部
B. 降结肠
C. 胰腺
D. 子宫
E. 胃
[单选题]( )下列型号的电缆中用于井下巷道照明的是:______。
A.UZP-0.3/0.5
B.UM-1
C.UYZ-0.3/0.5
D.UCP-0.66/1.14
[判断题]PEST分析法是分析企业外部环境中的政治、经济、社会、技术等宏观环境的分析方法。()
[填空题]带式输送机一般都装有()可逆自动调心托辊和()自动调心托辊。