题目详情
题目详情:

[单项选择]用于处理电梯受困的装置包括有().
A. 限速器
B. 警铃
C. 缓冲器
D. 限位开关

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[不定项选择题]共用题干 More,Rural Research Is Needed 1 Agricultural research funding is vital if the world is to feed itself better than it does now.Dr.Tony Fischer,crop scientist,said demand was growing at 2.5% per year,but with modern technologies and the development of new ones,the world should be able to stay ahead. 2 "The global decline in investment in international agricultural research must be rwersed if significant progress is to be made towards reducing malnutrition and poverty,"he said. 3 Research is needed to solve food production,land degradation and environmental problems.Secure local food supplies led to economic growth which,in turn,slowed population growth.Dr.Fischer painted a picture of the world's ability to feed itself in the first 25 years,when the world's population is expected to rise from 5.8 to 8 billion people.He said that things will probably hold or improve but there'll still be a lot of hungry people.The biggest concentration of poor and hungry people would be in sub-Saharan Africa and southern Asia in 2020,similar to the current pattern.If there is any change,a slight improvement will be seen in southern Asia,but not in sub-Saharan Africa.The major improvement will be in East Asia,South America and South一East Asia. 4 The developing world was investing about 0.5%,or $8 billion a year,of its agricultural gross domestic product(GDP)on research,and the developed world was spending 2.5%of its GDP.Dr.Fischer said more was needed from all countries. 5 He said crop research could produce technologies that spread across many countries,such as wheat roduction research having spin-offs for Mexico,China or India. 6 "Technologies still need to be refined for the local conditions but a lot of the strategic research can ave global application,so that money can be used very efficiently,"Dr.Fischer said. 7 Yields of rice,wheat and maize have grown impressively in the past 30 years,especially in developing countries.For example,maize production rose from 2-8 tonnes per hectare between 1950 and 1995.But technologies driving this growth,such as high-yield varieties,fertilisers,and irrigation,were becoming exhausted."If you want to save the land for non-agricultural activities,for forests and wildlife, you're going to have to increase yield,"Dr.Fischer said. Paragraph 3______
A.The Same or Improved Food Supply Situation in 2020
B.Research Focuses on Increased Yield
C.More Research Funding Needed
D.Local Situations Analyzed
E.Increase in Investment on Agricultural Research
F.Sustained Development of Modern Technologies
[单项选择]当某工程专业化施工技术要求较高,且工程内容及技术经济指标尚未确定,发包方与承包方之间已建立了良好的信任度,可采用( )合同形式。
A. 成本加奖罚
B. 纯单价
C. 成本加固定百分比酬金
D. 可调价
[单选题]在我国的国家机构体系中,人民检察院是( )
A.国家审判机关
B.国家法律监督机关
C.国家权力机关的执行机关
D.国家权力机关
[单项选择]溃疡性肠结核的主要表现是()
A. 常腹痛、腹泻、大便呈糊样
B. 多并发急性穿孔
C. 常发生大出血
D. 常可扪及肿块
E. 多有结核中毒症状
[单项选择]( )是国家发展规划的一项重要任务,是由国家重大建设项目的特点及其在国民经济中的作用所决定的。
A. 安排国家重大建设项目
B. 规划生产力布局
C. 提出宏观调控目标
D. 合理确定国民经济和社会发展战略
[单选题]对肾小管上皮细胞H+-Na+交换的叙述,错误的是(2.0分)
A.分泌一个H+,重吸收一个Na+
B.H+的分泌伴随Na+、HCO3-的重吸收
C.H+-Na+交换增强时可使血K+降低
D.有排酸保碱维持内环境pH稳态作用
E.酸中毒时,H+-Na+交换大于K+-Na+交换
[单项选择]金融市场最主要、最基本的功能是( )。
A. 货币资金融通功能
B. 资源配置功能
C. 风险分散与风险管理功能
D. 经济调节功能和定价功能
[单选题](86759)滚动轴承的( )通常装配在轴颈上,并与轴一起旋转
A.外圈
B.内圈
C.滚动体
D.保持架
[简答题]温经散寒
[单选题] 为了把磁电系电压表的测量范围扩大100倍,其附加电阻应是表内阻的()。
A.100倍
B.105倍
C.95倍
D.99倍
[单选题]截瘫患者容易发生的并发症是
A.坠积性肺炎
B.皮肤压疮
C.泌尿系感染
D.关节僵硬
E.骨化性肌炎
[单项选择]“联系舌根,分散于舌下’的经脉是()
A. 足厥阴肝经
B. 足少阴肾经
C. 足太阴脾经
D. 足阳明胃经
E. 足少阳胆经
[单项选择]患儿,1岁8个月,上呼吸道感染。医嘱:小儿百服宁1/4片,q6h,prn;头孢唑啉钠,0.25g,im,每天2次。门诊护士为该患儿肌内注射应选择()
A. 臀大肌外上方
B. 臀中肌、臀小肌
C. 三角肌下缘
D. 大腿前外侧
E. 三角肌上缘
[单项选择]下列叙述中正确的是
A. C语言中既有逻辑类型也有集合类型
B. C语言中没有逻辑类型但有集合类型
C. C语言中有逻辑类型但没有集合类型
D. C语言中既没有逻辑类型也没有集合类型
[填空题]站线上个别插入短轨,长度不得短于<--NRC-->m。
[单选题]《调规》第104条:阶段到发线运用计划确定分工,旅客列车到发线使用的规定:车站调度员或车站值班员必须变更到发线使用计划时,须征得对方同意并在( )中作鲜明标记。
A.班计划
B.阶段计划
C.技术作业图表
D.调车作业计划
[判断题][判断题]一般地,轨道交通企业规定凡指挥列车运行的命令和口头指示,只能由行车调度发布。()
A.正确
B.错误
[单选题]对不履行规定手续的检查组,被查单位( )接受检查。
A.不得拒绝
B.核实检查人员身份后
C.联系上级部门核实后
D.有权拒绝
[单选题]半自动闭塞区段发车进路信号机故障,使用半自动闭塞发车进路通知书发车,其编号为0134,LKJ解锁操作时,编号输入为( )。
A.0134
B.134
C.34
[单选题]以下纳入“金融机构活期存款-境内银行业存款类金融机构存款”科目核算的是( )。
A.农村资金互助社
B.金融资产管理公司
C.金融租赁公司
D.汽车金融公司
[判断题]两支等高接闪杆做防雷保护时,两杆间距与杆高之比不宜小于5。( )
A.正确
B.错误
[填空题]站台门互锁解除显示 ,站台门与联锁中断显示 。
[简答题]油脂在生产面包中有哪些功能?
[单选题]在低压用电设备上工作,需高压线路、设备配合停电时,应填用相应的()。
A.工作票
B.任务单
C.工作记录
D.派工单
E.略
F.略
[单选题]因车站客运工作人员( )、过失造成旅客人身伤害的,车站应当承担相关责任。
A.责任
B.不小心
C.违章作业
D.未落实作业标准
[单选题]《国有企业领导人员廉洁从业若干规定》制定的目的是:规范国有企业领导人员( ),加强国有企业反腐倡廉建设,维护国家和出资人利益,促进国有企业科学发展。
A.廉洁从业行为
B.遵纪守法行为
C.克己奉公
D.廉洁自律行为
[判断题]免维护蓄电池,在使用中不需加蒸馏水或补充电解液,无需保养与维护。
A.正确
B.错误
[单项选择]“亡血家不可发汗”的告诫,是哪一项理论的实际应用( )
A. 精血同源
B. 气血同源
C. 肝肾同源
D. 津血同源
E. 血汗同源
[填空题]春秋时期各国都编有史书,如晋国的《乘》、郑国的《志》、楚国的《梼杌》、鲁国的()、秦国的《秦记》。
[单选题] 车轮轮缘磨损超过原厚度的( )应报废。
A.20%
B.40%
C.50%
[单项选择]Questions 22 ~25 are based on the following monologue on psychological space.Which factor determines human beings’ psychological space needs
A. Economic factors.
B. Pressure in life.
C. Individual preference.
D. Cultural preference.
[判断题]选择邮寄的客户,业务人员可将产品给客户带走自行发行安装。
A.正确
B.错误
[判断题](类别:号段管理难度:中等)物联网业务中,全互联PC的解决方案主要是通过Wifi满足PC的连网需求。()
A.正确
B.错误
[判断题][判断] 太平天国农民起义首先爆发于广东地区。
A.正确
B.错误
[单项选择]
Pool Watch

Swimmers can drown in busy swimming pools when lifeguards fail to notice that they are in trouble. A report says that on average 15 people drown in British pools each year, but many more suffer major injury after getting into difficulties. Now a French company has developed an artificial intelligence system called Poseidon that sounds the alarm when it sees someone in danger of drowning.
When a swimmer sinks towards the bottom of the pool, the new system sends an alarm signal to a poolside monitoring station and a lifeguard’s pager (呼机). In trials at a pool in Ancenis, near Nantes, it saved a life within just a few months, says Alistair McQuade, a spokesman for its maker, Poseidon Technologies.
Poseidon keeps watch through a network of underwater and overhead video cameras. AI software analyses the images to work out swimmers’ trajectories (轨迹). To do this reliably, it has to tell the difference between a swimmer and
A. an image.
B. an idea.
C. anything immobile.
D. artificial intelligence.

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