热门试题:
[判断题]起重作业人员必须做“五好”、“五不吊”。 ( )
A.正确
B.错误
[判断题]单班单司机调车作业,调车指挥人不在司机室时可使用无线电台进行呼唤应答。
A.正确
B.错误
[单项选择]电视接收天线增益的高低与()成正比关系。
A. 半波振子长度
B. 接收轴向角度
C. 引向器的长度
D. 有效接收面积
[单项选择]男性,68岁。持续性胸骨后压榨样疼痛3小时急诊,血压78/45mmHg(10.5/6kPa),心电图示急性广泛前壁心肌梗死,静脉滴注多巴酚丁胺及硝普钠,需监测左心功能状态()
A. 漂浮导管测定肺毛细血管楔压
B. 冠状动脉造影
C. 放射性核素测定EF值
D. 无创血压测定
E. 超声心动图
[判断题]设备运维管理单位应将配电站、开闭所的井、坑、孔、洞或沟(槽) 覆以与地面齐平而坚固的盖板,所有吊物孔、楼梯和平台,应装设符合安全要求的栏杆和护板。
A.正确
B.错误
[判断题]如果冷车时尾气不合格,而热车时合格了,说明三元催化转换器没故障。( )
A.正确
B.错误
[单项选择]书写病历下列哪项不是基本要求()
A. 内容真实
B. 实验检查齐全
C. 格式规范
D. 描述精练
E. 填写全面
[单选题].下列情况下,无人机系统驾驶员由局方实施管理
A.在融合空域运行的轻型无人机
B.在融合空域运行的小型无人机
C.在隔离空域内超视距运行的无人机
[单选题]“凡事预则立,不预则废”,说的是( )的重要性。
A.组织
B.预测
C.预防
D.计划
[单选题]摘挂跌落式熔断器的熔管,应使用(),并派人监护。
A.绝缘棒
B.验电器
C.操作杆
D.专用工具
[单项选择]关于牙本质小管,不正确的叙述是()。
A. 近牙髓一端较粗,越近表面越细
B. 行程中有许多侧支可存在于球间牙本质内
C. 在近髓侧和近表面每单位面积内小管数目之比为4:1
D. 可越过釉质牙本质界,进入釉质内
E. 在牙颈部弯曲成"∽"形
[单项选择]
Earthquake survivors trapped in rubble could one day be saved by an unlikely rescuer: A robotic caterpillar that burrows its way through debris. Just a few centimeters wide, the robot relies on magnetic fields to propel it through the kind of tiny crevices that would foil the wheeled or tracked search robots currently used to locate people trapped in collapsed buildings
The caterpillar’s inventor, Norihiko Saga of Akita Prefectural University in Japan, will demonstrate his new method of locomotion at a conference on magnetic materials in Seattle. In addition to lights and cameras, a search caterpillar could be equipped with an array of sensors to measure other factors—such as radioactivity or oxygen levels—that could tell human rescuers if an area is safe to enter.
The magnetic caterpillar is amazingly simple. It moves by a process similar to peristalsis, the rhythmic contraction that moves food down your intestine. Saga made the caterpillar from
A. A robotic caterpillar is made from a series of rubber capsules filled with a magnetic fluid.
B. Iron particles, water and a detergent-like surfactant form a magnetic fluid.
C. Each capsule filled with a magnetic fluid is linked to the next by a pair of rubber rods.
D. In order to keep stable condition, the caterpillar’s guts are wrapped in a clear, flexible polymer tube.
[单选题]用来表达机器或部件中各零件的装配关系、工作原理和主要零件的结构特点的图称为( )。
A.装配图
B.零件图
C.安装图
D.结构图
[多选题]灭火救援中被火围困或在浓烟中迷失方向时如何自救()。
A.淋湿全身
B.到处走动
C.利用落水管
D.绳索自救
[多项选择]患者,男,30岁,体重65kg,因左耳内闭塞感,耳鸣,听力下降3个月伴耳痛,耳内流脓血1周就诊入院。入院初步诊断为外耳道胆脂瘤。检查见外耳道中后段黄白色物堵塞,其表面有红色肉芽和脓液覆盖。下列需要鉴别诊断的疾病是()。
A. 外耳道癌
B. 外耳道表皮栓
C. 外耳道骨瘤
D. 中耳胆脂瘤
E. 坏死性外耳道炎
F. 外耳道耵聍栓
[单项选择]人感染肺吸虫是通过
A. 吃进肺吸虫卵
B. 生吃或半生吃含肺吸虫活毛蚴的淡水螺
C. 肺吸虫尾蚴钻入人体皮肤
D. 生吃或半生吃含肺吸虫活囊蚴的淡水甲壳动物
E. 生吃或半生吃含有肺吸虫活胞蚴的淡水螺
[多选题]电力变压器过热故障可能发生的部位包括( )。
A.铁芯多点接地引起的过热
B.漏磁引起的夹件或其他金属构件的过热
C.导电回路焊接不良引起的过热
D.导电回路螺丝松动处的过热
[填空题]《铁路旅客运输办理细则》(铁运〔1997〕103号)规定,对不符合乘车条件的旅客、人员,站车均应了解原因,区别不同情况予以处理。对()补票并经站、车同意上车的人员或儿童,只补收票价,核收手续费。
[单项选择]三七、茜草、蒲黄的共同功效是()
A. 凉血止血
B. 收敛止血
C. 温经止血
D. 化瘀止血
E. 补气摄血
[判断题] 工质水在饱和状态下继续被加热,饱和水逐渐汽化为饱和蒸汽。( )
A.正确
B.错误
[多选题]某港口一物流公司危险品仓库的金属发生火灾,可供选择扑救此类火灾的灭火剂有( )
A.干粉
B.7150 灭火剂
C.干沙
D.铸铁屑粉末
[判断题]燃气销售价格,应当根据购气成本、利润和当地经济社会发展水平合理确定并适时调整。
[单项选择]()强调以居民的自助、互助来解决社区问题。
A. 社区互动模式
B. 地区发展模式
C. 社区计划模式
D. 社区行动模式
[多项选择]铝合金的优点有();耐久性能好;便于工业化生产等。
A. 重量轻、强度高
B. 密闭性能好
C. 使用中变形小
D. 立面美观
[单选题]( )及以上的油浸式变压器和户内0.4MVA及以上的油浸式变压器,均应装设瓦斯保护。
A.0.8MVA
B.1MVA
C.0.5MVA
D.2MVA
[不定项选择]根据商标法及相关规定,下列关于注册商标使用许可的说法哪些是正确的
A. 商标使用许可合同未在商标局备案的,不具有法律效力
B. 商标使用许可合同未在商标局备案的,不得对抗善意第三人
C. 许可人应当监督被许可人使用该注册商标的商品质量
D. 被许可人必须在使用该注册商标的商品上标明其名称和商品产地
[填空题]
Over a six-week period, ABC news’ chief investigative correspondent Brian Ross and his team turned in 20 wallets or purses to 20 police officers chosen at random in Los Angeles. Varying amounts of cash were put in each, as well as numerous pieces of identification, with names, addresses and phone numbers.
In fact, Ross used this technique back in the 1970s as a local reporter in Miami, when confidence in public officials at all levels was at an all-time low. The results of that wallet test did little to boost public confidences 10 of the 31 wallets given to officers in the Miami area were never recovered, and two of them were turned in but the cash was missing. A number of the officers were fired or took early retirement after that report.
Almost 30 years later, police honesty and integrity are again being called into question, most recently in Los Angeles, where the police department is trying to recover from a serious corruption scandal in its Rampart Divi
[单选题]《普规》规定:列车进站后,应停于接车线警冲标()方。
A.内
B.外
C.前
D.后
[多选题]室内消火栓系统定期检查维护的项目主要包括:等。
A.检查消火栓与固定接口间的密封件是否老化并及时更换
B.检查室内消火栓及各种阀门的转动机构是否灵活,有无锈死现象
C.检查消火栓箱内控制按钮、指示灯及报警控制线路功能是否正常
D.检查室内消火栓、求枪、水带等器材是否并全完好等
[单选题]SS3电力机车牵引的区段站到发线有效长956m,以11m为单位计算,其换算容车数为( )。
A.80辆
B.82辆
C.84辆
D.86辆
[单项选择]E1接口若采用2收2发4线方式其特性阻抗一般为下列哪种形式?()
A. 120Ω,平衡
B. 75Ω,非平衡
C. 120Ω,非平衡
D. 75Ω,平衡
[多项选择]胃、十二指肠溃疡大出血常见于()
A. 胃小弯
B. 十二指肠前壁
C. 胃大弯
D. 十二指肠后壁
E. 胃底部
[单项选择]会计制度规定( )。
A. 凭证录入员和审核员不能为同一人
B. 凭证录入员和记账员不能为同一人
C. 凭证记账员和审核员不能为同一人
D. 凭证录入员和记账员可以为同一人
[单项选择]两栖类的心脏腔室构造为()
A. 二心房二心室
B. 二心房一心室
C. 一心房二心室
D. 一心房一心室
[单项选择]{{I}} Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now listen to the passage.{{/I}}What do the bee’s round dance and tail-wagging dance indicate
A. The smell of the food.
B. The quality of the food.
C. The distance of the food.
D. The amount of the food.