热门试题:
[填空题]运用车是指参加铁路(####)的部属铁路货车、企业自备货车、内用货车、外国货车，企业租用、军方特殊用途重车。
[单选题]一个计算机操作系统通常应具有______。
A.CPU的管理；显示器管理；键盘管理；打印机和鼠标器管理等五大功能
B.硬盘管理；软盘驱动器管理；CPU的管理；显示器管理和键盘管理等五大功能
C.处理器（CPU）管理；存储管理；文件管理；输入/出管理和作业管理五大功能
D.计算机启动；打印；显示；文件存取和关机等五大功能
[填空题]高速铁路60kg/m钢轨轨腰厚度为<--NRC-->mm。
[单选题]液压救援顶杆的作业覆盖范围为( )mm。
A.460～1060
B.360～960
C.460～960
D.360～1060
[多选题]雨淋自动喷水灭火系统模拟灭火功能试验,当采用传动管控制的系统时,传动管泄压后,系统应完成下列( )等动作和显示功能。[难]
A.应联动开启雨淋阀,压力开关应动作
B.自动打开雨淋阀的电磁阀并有信号反馈
C.水力警铃应鸣响
D.应自动启动喷淋泵
E.消防控制室的联动控制设备应显示压力开关、喷淋泵的反馈信号
[单选题]地下室、人防设备安装必须派有经验的施工人员进行施工线路架空要求2m以上,照明灯泡必须有()罩。
A.保护
B.防护
C.防尘
[单项选择]关于中耳乳突炎，下列说法哪项错误
A. 乳突气房密度增高
B. 乳突房壁增厚、结构模糊
C. 气房间隔骨质破坏或硬化
D. 气房内充满肉芽组织
E. 急性者常有胆脂瘤形成
[判断题]幼儿园的教育目标必须覆盖体育、智育、德育、美育各个方面，否则影响幼儿的全面发展。
[判断题]客服岗上下行末班车到前 2 分钟阻止前往该方向的乘客购票进站;(1.0 分)
A.正确
B.错误
[判断题]屏蔽门系统硬件和软件不具备在线修改功能。（ ）
A.正确
B.错误
[单项选择]下列关于WAV文件和MIDI文件的叙述，错误的是（）。
A. 通常WAV文件比MIDI文件可表示的音乐更丰富
B. 存储同样的音乐文件，WAV文件比MIDI文件存储量大
C. 在多媒体应用中，一般背景音乐用WAV文件，解说用MIDI文件
D. MIDI文件中记录的是乐谱
[填空题]The only vehicle that didn’t hit an obstacle in the trial runs is ________________.
[单项选择]Climatic conditions are delicately adjusted to the composition of the Earth’s atmosphere. If there were a change in the atmosphere for example, in the relative proportions of atmosphere gases the climate would probably change also. A slight increase in water vapor, for instance, would increase the heat-retaining capacity of the atmosphere and would lead to a rise in global temperatures. In contrast, a large increase in water vapor would increase the thickness and extent of the cloud layer, reducing the amount of solar energy reaching the Earth’s surface.
The level of carbon dioxide, CO2, in the atmosphere has an important effect on climatic change. Most of the Earth’s incoming energy is short wavelength radiation, which tends to pass through atmospheric CO2 easily. The Earth, however, reradiates much of the received energy as a long wavelength radiation, which CO2 absorbs and then remits toward the Earth. This phenomenon, known as the greenhouse ef
A. easy to measure the exact increase in temperature because of the abundance of temperature recording stations throughout the world
B. difficult to prove that the warming was caused by the burning of fossil fuels
C. easy to demonstrate the effects of the warming on the water vapor in the atmosphere
D. difficult to measure the increase of CO2 in the atmosphere because of local variations in amount
[单项选择]骨骺分离属于
A. 骨折
B. 关节脱位
C. 先天性骨发育不良
D. 骨髓炎的一种类型
E. 骨肿瘤
[简答题]B=40g，w=200m/s，P=770mmHg，T=10°C，查出A，平衡器150g，需要多少砝码，步骤是什么？
[单选题]软、硬卧车代用软、硬座车时，软卧每一下铺按(）人、硬卧每一下铺按（）人计算，不再加超员率，上铺均禁止出售，中铺吊起固定。()
A.2，3
B.2,4
C.3,4
D.2,2
[单项选择]下列行为不符合驾驶员礼仪要求的是（）。
A. 运营前和运营中不吃有异味的食品
B. 女驾驶员不使用气味浓烈的香水
C. 红灯等待时抓挠身体
D. 行驶过程不轻易发言
[单选题]大蓟除具有凉血止血作用外，还能
A.强心
B.解毒敛疮
C.降压
D.化痰止咳
[判断题]当有火灾发生时，信号蝶阀自动联动控制喷淋泵的启动，并能够在消防控制室显示其启动及其动作反馈信号。（ ）
A.正确
B.错误
[判断题]人身触电急救时,如果触电者有呼吸,无心跳则应该实施胸外挤压法急救。
A.正确
B.错误
[多选题]按照建设部的有关规定,建筑施工企业取得安全生产许可证,应当具备下列那些安全生产条件?()
A.建立、健全安全生产责任制,制定完备的安全生产规章制度和操作规程
B.主要负责人、项目负责人、专职安全生产管理人员经建设主管部门或者其他有关部门考核合格
C.保证本单位安全生产条件所需资金的投入
D.管理人员和作业人员经建设主管部门培训并考核合格
E.施工现场的办公、生活区及作业场所和安全防护用具、机械设备、施工机具及配件符合有关安全生产法律、法规、标准和规程的要求
[单选题]97. 电工常用仪表中，精确度等级最高的是( )。
A.0.05
B.0.1
C.0.15
D.0.2
[单选题]运维单位人员汇报由于严重自然灾害、山火等导致线路不具备恢复送电的情况，不允许对线路进行远方试送
A.正确
B.错误
C.略
D.略
E.略
F.略
[单选题]2186.在种系发生过程中最早出现的Ig是
A.A.IgG
B.B.IgD
C.C.IgE
D.D.IgM
E.E.IgA
[单项选择]Acid rain leads to fish mortality. Many species of fish cannot survive in aquatic environments where the pH is below 5.0. If the water is too acid, the gill systems of many kinds of fish can be damaged. (61) , the acid alters the blood chemistry of all fish. As a result, the fish population in an acidic environment decreases (62) becomes extinct. Approximately 20 percent of the lakes in Scandinavia are without fish. Moreover, in Nova Scotia the (63) salmon industry may be threatened by the decrease of salmon in rivers and streams. The impact is also (64) in the waters of Ontario and Quebec, where fish populations are (65) the decline.
What potential remedies exist for the acid rain (66) The experts disagree. Some say new environmental laws should be (67) to control the emission of pollutants in the atmosphere. Some say that if we had known how serious acid rain was, we would have planned (68) to prevent it. (69) , all
A. matter
B. issue
C. affair
D. question
[判断题]资产支持证券分档设计的核心原则是：非违约情况下，在任一专项计划分配日专项计划账户可支配现金流金额应大于等于资产支持证券分配所需现金流。
[单项选择]产单核细胞李斯特菌与B群链球菌有许多相似的性状，两者有鉴别意义的试验是（）
A. 磷脂酶试验
B. CAMP试验
C. 凝固酶试验
D. 触酶试验
E. β耐盐试验
[判断题]优秀消防员的基本条件是.政治思想强,业务技术精,作风纪律严,完成任务好。( )
A.正确
B.错误
[单项选择]同一房屋的区分所有权人享有该房屋使用范围内的( )使用权。
A. 基地
B. 地面停车场
C. 公共设施
D. 地下储藏室
[单项选择]数据库的三级模式结构中，外模式又称为
A. 物理模式
B. 存储模式
C. 逻辑模式
D. 用户模式
[单选题]
测量电气设备的吸收比，应使用( )。
A.万用表
B.直流双臂电桥
C.兆欧表
D.钳流表
[单项选择]
It is a favorite pastime of older people to lament the defects of the young. Every generation seems to be convinced that in its day, standards were higher, schools were tougher and kids were smarter. But if I.Q. scores are any measure, and even their critics agree they measure something, people are getting smarter. Researchers who study intelligence say scores around the world have been increasing so fast that a high proportion of people regarded as normal at the turn of the century would be considered way below average by today’s tests.
Psychologists offer a variety of possible explanations for the increase, including better nutrition, urbanization, more experience with test taking, and smaller families. Some even say that television and video games have made children’s brains more agile. But no explanation is without its critics, and no one can say with certainty what effects, if any, the change is having on how people lead their daily lives. It is all the m
A. should be respected and promoted from time to time
B. has various forms and measurements
C. will help game players improve their skills
D. is strongly influenced by the achievements like DNA
[简答题]种子和发酵的接种量是否愈大愈好，为什么？
[单项选择]关于ZXONE 8000的CH1单板，STM-16业务的映射方式为（）
A. CBR2G5-ODU1
B. GE-〉GFP-T-〉ODU0
C. GE-〉ODU1
D. GE-〉GFP-T-〉ODU1
