热门试题:
[判断题]《关于党内政治生活的若干准则》规定,对关系党和国家的根本利益和全局的重大政治性的理论和政策问题,有不同看法,可以在党内适当的场合进行讨论。( )
A.正确
B.错误
[单选题]申请《特种设备作业人员证》的人员年龄在()以上。
A.16周岁
B.18周岁
C.20周岁
[单项选择]特发性血小板减少性紫摊抗血小板抗体产生的主要场所是：（）
A. 肝脏
B. 脾脏
C. 骨髓
D. 单核细胞
E. 血管内皮
[单选题] 运维班对发现不合格或超试验周期的应隔离存放，做出( )标识，停止使用。
A.“备用”
B.“禁用”
C.“不合格”
D.“退役”
[单项选择]The American president involved in Watergate Scandal was ______.
A. Richard Nixon
B. George Bush
C. Andrew Jackson
D. Bill Clinton
[多项选择]危险性较大的基坑(槽)施工方案的主要内容应包括( )。
A. 放坡要求
B. 支护结构设计
C. 车辆进出道路
D. 分层开挖深度
E. 配电系统设计
[单项选择]下列哪种情况不属于狭义的特殊儿童（）
A. 智力障碍儿童
B. 视力障碍儿童
C. 听力障碍儿童
D. 营养过剩儿童
[判断题]在同塔架设多回线路杆塔的停电线路上装设的接地线，应采取措施防止接地线摆动，并满足表3安全距离的规定。
A.正确
B.错误
[单选题]毒蛇咬伤的护理错误的是
A.抬高肢体
B.卧床休息
C.严密观察病情变化
D.创口持续湿敷
E.中草药内月艮
[单选题]进行DC600V及DC600V/AC380V兼容供电的客车绝缘检测时.当运用列车在湿度大于等于85％时，线间绝缘值不得低于（ ）MΩ
A.0.6
B.0.4
C.0.5
D.0.3
[单选题]在尺寸符号φ50F8中,用于判断基本偏差是上偏差还是下偏差的符号是()。
A.50
B.F8
C.F
D.8
[单项选择]在Windows98中可按（）键得到帮助信息。
A. F1
B. F2
C. F3
D. F10
[单选题]韶山3B型电力机车侧向摩擦减振器的摩擦片厚度小于()时应更换。
A.3．5mm
B.4．0mm
C.4．5mm
D.5．0mm
[单选题]峭壁、陡坡的工作场地或人行道上，冰雪、碎石、泥土应经常清理，靠外面一侧应设1050～1200mm高的栏杆，栏杆内侧设（ ）高的侧板。
A.180mm
B.150mm
C.120mm
D.210mm
[判断题]禁止在铁路线路安全保护区内烧荒、放养牲畜、种植影响铁路线路安全和行车瞭望的树木等植物。( )
A.正确
B.错误
[单选题]依据《中国南方电网有限责任公司电力安全工作规程》（Q/CSG510001-2015)第5. 4. 2条规定：刘某在一次临时施工变验收过程中，按规程临时用电检修电源箱应装自动空气开关、剩余电流动作保护器、接线柱或插座；其次专用接地铜排和端子、箱体必须（ ），接地、接零标识应清晰。
A.有防潮装置
B.有防爆装置
C.有防护装置
D.可靠接地
[单选题]电力机车进行（）作业时，机车必须停在安全区内，并办妥停电手续，挂好接地线后方能进行。
A.检查
B.车顶
C.底部
D.保养
[单项选择]小儿多大后肾脏发育成熟（）
A. 出生后即成熟
B. 6个月
C. 1岁
D. 2岁
E. 3岁
[不定项选择题]共用题干
Rainmaking
1 The idea of rainmaking is almost as old as man,but it was not until 1946 that man succeeded in making rain.In ancient times,rainmakers had claimed to bring rain by many methods:dancing.singing-Kiiiing animals t including humans).
2 For a long time,men have understood where rain comes from.Water from the surface of oceans and lakes becomes part of the air,where it forms clouds from which rain falls.But exactly what starts the formation of raindrops was not known until quite recently.A man named John Aitken proved that drops of water gather around tiny bits of dust or other matter.The centers of the drops are so small that the human eye cannot see them.Without such centers,it seems raindrops do not form.
3 During World War Ⅱ,Dr.Irving Langmir,and his assistant Schaefer,were hired by the General Electric Company to study how and why ice forms on the wings of airplanes.They went to a mountain in New Hampshire,where snowstorms are common and cold winds blow.They were surprised to find that often the temperature of the clouds surrounding them was far below the freezing point,and yet ice did not form in the clouds.
4 After the War,Schaefer experimented with a machine that created cold,moist air similar to the air found in clouds.To imitate the moist air of a cloud,Schaefer would breathe into the machine.Then he would drop into the freezer a bit of powder,sugar,or some other substance.For weeks and months he tried everything he could imagine.Nothing happened.No crystals of ice were formed.None of the substances would serve as the center of a snow crystal or raindrops.
5 One July morning,Schaefer was dropping in bits of various substances and watching the unsuccessful results.Finally,a friend suggested that they go to eat lunch and Schaefer went with him.As usual,he left the cover of the freezer up,since cold air sinks and would not escape from the box.
6 Returning from lunch,Schaefer found that the temperature of the freezer had risen to a point higher than that required for ice crystals to remain solid.There were two choices now.He could close the cover and wait for the freezer itself to lower the air temperature,or he could make the process occur faster by adding dry ice-a gas in solid form that is very,very cold.He chose the latter plan.As he dropped the steaming white dry ice into the freezer,he happened to breathe out a large amount of air.And there,before his eyes,it happened!He had made ice crystals,not by adding centers to the moisture,but by cooling the breath so much that the liquid had to form crystals!Then he began to blow his breath into the freezer and drop large pieces of dry ice through it to create crystals which became a tiny snowstorm falling slowly to the floor of his laboratory.
7 After planning carefully,Schaefer made an experiment by dropping dry ice from his plane to the clouds below him.As was expected,snow formed and fell from the bottom of the cloud.Schaefer succeeded.He made history.
Paragraph 3______
A.Langmir and Schaefer's Work for the GE Company
B.Langmir and Schaefer's Discovery of Rain-forming
C.Men's Knowledge of Rain-forming
D.Schaefer's Several Unsuccessful Experiments
E.Schaefer's Discovery by Accident
F.Langmir and Schaefer's Successful Cooneration
[单选题] 姜片虫最重要的保虫宿主为
A.猫
B.狗
C.牛
D.羊
E.猪
[多选题]无机结合料稳定材料试件制作方法（圆柱形）适用于无机结合料稳定材料的()试验。
A.间接抗拉强度
B.无侧限抗压强度
C.劈裂模量
D.抗压回弹模量
[单选题]足月新生儿臀先露，生后1天突然惊厥，烦躁不安。体格检查：体温正常，前囟饱满，肌张力高，双眼凝视，唇微绀，心率132次/min，肺部未闻及啰音。有关治疗及护理下列哪项不恰当( )
A. 保持安静，避免搬动
B. 烦躁不安、惊厥时可用镇静药
C. 可使用维生素K，控制继续出血
D. 呼吸循环衰竭时可连续使用中枢神经兴奋药
E. 吸氧、保暖、保持呼吸道通畅
[单项选择]外汇风险产生的根本原因是（）
A. 契约的变动
B. 制度的变动
C. 币种的变动
D. 汇率的变动
[判断题] 政治坚定是指对党忠诚,热爱祖国,坚定共产主义信念和社会主义必胜的信心,自觉贯彻党的基本路线和基本纲领,在思想上政治上同党中央保持一致。(易)( )
A.正确
B.错误
[单项选择]住所地在长春的四海公司在北京设立了一家分公司。该分公司以自己的名义与北京实达公司签订了一份房屋租赁合同，租赁实达公司的楼房一层，年租金为30万元。现分公司因拖欠租金而与实达公司发生纠纷。下列判断哪一个是正确的？（）
A. 房屋租赁合同有效，法律责任由合同的当事人独立承担
B. 该分公司不具有民事主体资格，又无四海公司的授权，租赁合同无效
C. 合同有效，依该合同产生的法律责任由四海公司承担
D. 合同有效，依该合同产生的法律责任由四海公司及其分公司承担连带责任
[简答题]
- A．内分泌失调
- B．舔唇不良习惯
- C．感冒
- D．残根残冠刺激
- E．消化不良
创伤性溃疡的病因
[判断题]孟子被尊为亚圣，提出仁政的学说，他认为“民为贵，社稷次之，君为轻”。( )
[单项选择]自总皂苷中分离甾体皂苷可选用的方法是( )
A. 乙醚沉淀法
B. 胆甾醇沉淀法
C. 铅盐沉淀法
D. 吉拉德试剂提取法
E. 碱水提取法
[判断题]项目.工程.成套设备等相关代垫或分摊期限原则上不得超过36个月。
A.正确
B.错误
[不定项选择题]生物物种保护中，根据种群状态将生物分为()。
A.受威胁物种
B.渐危物种
C.濒危物种
D.高危物种
E.灭绝物种
[判断题]刑法中禁止令的期限，既可以与管制执行的期限相同，也可以短于管制执行的期限，
但判处管制的，禁止令的期限不得少于 3 个月。
A.正确
B.错误
[单选题]推进精益化市场化“两化融合”是以( )为基础。
A.精益化管理
B.绩效考核管理
C.全面预算管理
D.完全市场化建设
[单选题]麻疹患儿从出疹后应隔离的天数
A.3d
B.5d
C.7d
D.10d
E.14d
[多项选择]
患者男性，33岁，骶部皮下肿物33年，9个月时曾行脊膜膨出手术治疗，小便失禁33年，双下肢乏力2年。查体：L1平面以下皮肤痛、温觉减退。下肢肌力4级，肌张力增高，双侧巴宾斯基征阳性，肛门反射减弱。MRI提示S3脊膜膨出，圆椎低位，T12以下脊髓长T1、长T2水肿表现。
脊髓拴系的治疗原则包括（）
A. 脊髓拴系手术治疗的根本目的在于防止病情继续进展
B. 出现排尿、粪功能障碍常提示预后欠佳
C. 手术通常能使排尿、粪功能障碍、下肢和足部的变形得到改善
D. 手术可能使疼痛和不完全的肌力下降得到一定程度的改善
E. 对于脊髓圆锥拴系综合征，越早手术效果越好，出现症状2年内手术预后好
F. 手术切断终丝松解粘连，解除脊髓受压，梳理马尾是最重要的，以达到改善脊髓圆锥血液循环的作用
[多选题]三相鼠笼式异步电动机的调速方法有（）
A.改变极对数
B.改变转差率
C.改变电源电压
D.改变电源频率
[判断题]抱杆投入使用前进行验收，包括资料验收、现场验收。（）
A.正确
B.错误
