热门试题:
[判断题]在有芯弯管中，若弯管的直径相同，弯曲半径不同，只需换夹头即可.()
A.正确
B.错误
[判断题]选用漏电保护器，应满足使用电源电压、频率、工作电流和短路分断能力的要求。
[简答题]Who would have thought that, globally, the IT industry produces about the same volumes of greenhouse gases as the world’s airlines do-rough 2 percent of all CO2 emissions
Many everyday tasks take a surprising toll on the environment. A Google search can leak between 0.2 and 7.0 grams of CO2 depending on how many attempts are needed to get the “right” answer. To deliver results to its users quickly, then, Google has to maintain vast data centres round the world, packed with powerful computers. While producing large quantities of CO2, these computers emit a great deal of heat, so the centres need to be well air-conditioned, which uses even more energy.
However, Google and other big tech providers monitor their efficiency closely and make improvements. Monitoring is the first step on the road to reduction, but there is much to be done, and not just by big companies.
[简答题]生态系统的物质是怎样循环的？有什么特点？
[单选题]林某,男,66岁。有高血压病史8年,急起口齿不清,口角歪斜,左侧肢体活动障碍3日。目前最合适的检查是()
A.脑血管造影
B.腰椎穿刺脑脊液检查
C.脑电图
D.头颅 CT
E.超声波
[单选题](id4709)如果两个飞行员都按压他们的接管按钮,谁将得到优先权:
A.最先按压接管按钮的一侧
B.最后按压接管按钮的一侧
C.机长一侧
[单项选择]肾性急性肾功能衰竭最常见的原因（ ）
A. 急性肾小球性肾炎综合征
B. 肾血管性疾病
C. 严重的急性间质性肾炎
D. 急性肾小管坏死
E. 慢性肾脏疾病的急性发作
[判断题]对已经输入但未登记会计账簿的机内记账凭证，不能进行修改。
[单项选择]根据《会计基础工作规范》的规定，单位负责人的直系亲属不得在本单位担任的会计工作岗位是( )。
A. 会计机构负责人
B. 稽核
C. 会计档案保管
D. 出纳
[单选题]作业人员应具备必要的（），学会紧急救护法，特别要学会触电急救。
A.安全生产知识
B.技能等级
C.专业学历
D.工作经验
[单项选择]常言道“吃一堑，长一智”，其哲学寓意是
A. 物质可以代替智慧
B. 经验教训是增长智慧的根本动力
C. 直接经验是检验智慧高低的根本途径
D. 错误往往是真理的先导，失败常常是成功之母
[单项选择]差动连接的液压缸可使活塞实现（）
A. 减速
B. 加速
C. 慢速
D. 快速
[判断题]对使用、生产或聚集可燃气体或可燃液体蒸气的场所，应选择可燃气体探测器
A.正确
B.错误
[判断题]个人存款证明业务是指根据个人客户要求,为存款人开具其某一时段在我行存款情况的书面证明。( )
A.正确
B.错误
[单项选择]Next week, as millions of families gather for their Thanksgiving (感恩节) feasts, many other Americans will go without. According to the United States Department of Agriculture, more than 12 million households lack enough food for everyone in their family at some time during the year—including holidays.
Hunger is surprisingly widespread in our country—one of the world’’s wealthiest—yet the government estimates that we waste almost 100 billion pounds of food each year, more than one-quarter of our total supply.
Reducing this improper distribution of resources is a goal of America’’s Second Harvest, the nation’’s largest domestic hunger-relief organization. Last year, it distributed nearly 2 billion pounds of food to more than 23 million people in need.
America’’s Second Harvest is a network of 214 inter-connected food banks and other organizations that gather food from growers, processors, grocery stores and restaurants. In turn, the network distributes food to some 50,000 s
A. enlarge its network
B. prevent food from spoiling
C. give out food more efficiently
D. solve the hunger problem in the country
[判断题]办理持军队、武装警察部队机动车驾驶证申领机动车驾驶证时,属于复员、退伍、转业的,应当收存军队、武装警察部队机动车驾驶证原件和复员、退伍、转业证明复印件。属于军队的,还应当收存《军车驾驶员基本信息登记表》。
A.正确
B.错误
[单项选择]Montaigne’s hold on his readers arises from many causes. There is his frank and curious self-delineation. That interests, because it is the revelation of a very peculiar nature. Then there is the positive value of separate thoughts imbedded in iris strange whimsicality and humor. Lastly, there is the perennial charm of style, which is never a separate quality, but rather the amalgam and issue of all the mental and moral qualities in a man’s possession, and which bears the same relation to these that light bears to the mingled elements that make up the orb of the sun. And style, after all, rather than thought, is the immortal thing in literature. In literature, the charm of style is indefinable, yet all subduing, just as fine manners are in social life. In reality, it is not of so much consequence what you say, as how you say it. Memorable sentences are memorable on account of some irradiating word. "But Shadwell never deviates into sense, for instance." Young Roscius, in his provincial
A. familiarity
B. surprise
C. thoughts
D. contrast
[判断题]10kV及以下三相供电的,电压允许偏差为额定电压的为±10%。()
A.正确
B.错误
[单项选择] How Global Warming Works
Gases in the Earth’’s atmosphere act like glass in a greenhouse-trapping heat and making life on Earth possible. But there is a delicate balance. Burning coal, oil and natural gas increases atmospheric concentrations of these gases. Over the past century, increases in industry, transportation, and electricity production have increased gas concentrations in the atmosphere faster than natural processes can remove them leading to human-caused warming of the globe.
The Sources Of Global Warming
The major source of global warming is carbon dioxide pollution from power plants, auto mobiles, and industry. Another source is global deforestation.
●Power plants are responsible for more than a third of U. S. CO2 emissions, yet there are no caps on CO2 emissions from power plants or any other industry.
●Gas guzzling cars and light trucks are also responsible for a third of U.S. CO2 emissions. Current regulations allow fo
A. Y
B. N
C. NG
[判断题]《行规》第35条规定，单机挂车时，已附挂无动力机车或故障机车时，再挂车辆不准超过1辆。
A.正确
B.错误
[判断题]在车站操作方式、车站调车操作方式以及非常站控模式下，调车工作由车站调度员或调车区长（未设车站调度员、调车区长的，由车站值班员）担当调车领导人。
A.正确
B.错误
[判断题]满堂支撑架顶部的实际荷载不得超过设计规定的110%。
A.正确
B.错误
[单项选择]The essential problem of man in a computerized age remains the same as it has always been. That problem is not solely how to be more productive, more comfortable, but how to be more sensitive, more sensible, more alive. The computer makes possible a gigantic leap in human proficiency; it demolishes the fences around the practical and even the theoretical intelligence. But the question persists and indeed grows whether the computer will make it easier or harder for human beings to know how they really are, to identify their real problems, to respond more fully to beauty, to place adequate value on life, and to make their world safer than it is now.
Electronic brains can reduce the profusion (繁多) of dead ends involved in research. But they can’t connect a man to the things he has to be connected to: the reality of pain in others; the possibilities of creative growth in himself; the memory of the race and the rights of the next generation.
The reason why these matters are im
A. point out that the abundance of facts may be harmful to human intellect
B. illustrate the necessity of always attending to facts
C. show the importance of using human judgment in the computerized age
D. tell that facts are always irrelevant and needed to be connected
[简答题]为了建设美丽宁夏，“三位一体”的环境准入机制是指？
[多选题]哪些情况未经就地检查变电设备或采取必要措施的，不允许直接强送？
A.已接到跳闸线路不具备运行条件的报告；
B.线路跳闸时系统伴有振荡现象
C.线路有带电作业或带电跨越施工
D.强送开关为单相故障单相开关拒动时可能导致系统失稳的开关。
[单选题]我国铁路货车主要采用斜楔式干摩擦减振器，通过侧架（ ）磨耗板、斜楔、摇枕斜楔摩擦面的紧密配合起到摩擦吸振和横向定位的作用，并具有结构简单、成本低廉、维修便捷等特点。
A.斜柱
B.侧柱
C.立柱
D.立面
[单选题]表皮从内层向外层依次为()
A.基底层颗粒层角质层棘细胞层透明
B.角质层基底层颗粒层透明层棘细胞层
C.基底层棘细胞层颗粒层透明层层
D.角质层透明层颗粒层棘细胞层角质层
[单选题]邻近营业线施工是指在营业线两侧一定范围内，新建铁路工程、既有线改造工程及地方工程等影响或可能影响铁路营业线（）、使用和行车安全的施工作业。
A.线路安全
B.安全生产
C.设备稳定
D.施工安全
E.略
[多选题]20世纪初,中国经济、政治、文化的剧烈变动,为旧民主主义向新民主主义转变创造的条件是( )。
A.中国民族资本主义的发展
B.中国社会各阶级力量分化重组
C.中国工人阶级的成长和工人运动的发展
D.新文化运动和俄国十月革命的影响
[多项选择]狭义的工程保险包括( )。
A. 建筑工程一切险(及第三者责任险)
B. 安装工程一切险(及第三者责任险)
C. 机器损坏险
D. 人身意外伤害险
E. 货物运输险
[判断题]2.74 文职、聘用人员办理机动车登记业务时,可以使用监督民警的用户名、密码或者PKI/PMI登录计算机登记系统。
A.正确
B.错误
[多项选择]工程地质复核工作，应在（）期间进行。
A. 开工前
B. 施工期间
C. 竣工后
D. 质量保修期
E. 投标期间
[单选题]当违法犯罪行为人停止实施违法犯罪行为时，公安民警应当（ ）可能造成人身伤害的徒手制止动作。
A.逐渐停止
B.立即停止
C.视情况停止
D.逐步缓和
[多项选择]医院的基本功能有（ ）
A. 医疗工作
B. 教学工作
C. 预防和社区卫生服务
D. 科研工作
E. 保健工作
[多选题] 装、拆接地线导体端均应使用( )。
A. 绝缘棒
B. 绳索
C. 专用的绝缘绳
D. 抛掷方法
