热门试题:
[单选题]《客车车电装置检修规程》中规定,DC48V应急电池箱熔断器容量为( )A。
A.10
B.20
C.30
D.40
[单选题]工作场所的生产布局应当符合()。
A.,效益原则;
B.有害与无害作业分开的原则
C.满足生产需要的原则
[多项选择]能合成胶原纤维的细胞有()。
A. 内皮细胞
B. 成纤维细胞
C. 成骨细胞
D. 软骨细胞
E. 平滑肌细胞
[单项选择]哪种复审应该把重点放在系统的总体结构、模块划分、内外接口等方面
A. 详细设计
B. 系统设计
C. 正式
D. 非正式
[判断题]物质B在α相和β相之间进行宏观转移的方向总是从浓度高的相迁至浓度低的相。 ( )
A.正确
B.错误
[单选题]请选出机房“RTU与电源通讯告警”状态时web管理界面中站点的颜色:( )
A.(绿色)
B.(红色)
C.(黄色)
D.(灰色)
[单选题]使用金信借记卡刷卡消费时,持卡人( )缴纳手续费。
A.无需
B.按交易金额的1%
C.按交易金额的2%
D.按每笔2元
[单选题]金黄色葡萄球菌不产生的毒素或酶是
A.α溶血毒素
B.血浆凝固酶
C.肠毒素
D.杀白细胞素
E.内毒素
[单选题] 国家安全一般是指一个不受内部和外部的威胁、破坏而保持稳定有序的状态。其中国家的领土、领海和领空不受外来军事威胁或侵犯的安全,指的是( )。
A. 国防安全
B. 社会公共安全
C. 政治安全
D. 生态安全
[多选题] 张大爷患有 2 型糖尿病 15 年,为调整血糖来院就诊。问诊过程中自诉 2 年前曾用过“一 周打一次针”的降糖药,有可能是( )
A. 利拉鲁肽注射液
B. 度拉糖肽注射液
C. 注射用艾塞那肽微球
D. 德谷胰岛素注射液
E. 聚乙二醇洛塞那肽注射液
[判断题]施工单位在尚未竣工的建筑物内设置员工集体宿舍应确保安全,保持良好的疏散通道。( )
A.正确
B.错误
[单选题] 关于轨道电路与线路设备的关系,不正确的叙述是( )。
A.自动闭塞分区区段内的钢轨必须导电,而相邻分区区段的钢轨必须绝缘
B.为防止钢轨漏电,钢轨与混凝土枕之间必须绝缘
C.两股钢轨之间不能短路
D.道岔连接部分无轨道电路,道岔通长垫板不用绝缘
[判断题]厦门地铁2号线电客车在ATC切除的模式下,零速信号由牵引逆变器的速度传感器提供
A.正确
B.错误
[单选题]关于教育行动研究尽管不同学者有不同的理解,但它们却有一个共同点,即( )。
A. 强调为构建理论而进行研究
B. 强调为改变自身的境遇而采取行动
C. 强调用理论的方法对自己的行动进行研究
D. 强调用实证的方法对自己的行动进行研究
[不定项选择题]犯罪嫌疑人刘某涉嫌故意杀人被公安机关立案侦查。在侦查过程中,侦查人员发现刘某行为异常。经鉴定,刘某属于依法不负刑事责任的精神病人,需要对其实施强制医疗。请回答第(1)~(2)题。
关于有权启动强制医疗程序的主体,下列选项正确的是:查看材料
A.公安机关
B.检察院
C.法院
D.刘某的监护人、法定代理人以及受害人
[单选题]内置辅镜+.12表示( )。
A.遮盖片
B.无镜片或平光镜片
C.视网膜检影镜片
D.0.25D球面透镜的半量调整
[单项选择]从事特种作业的员工,必须按照国家规定标准(),并取得()方可上岗,执行岗位待遇。
A. 培训学习;特种作业资格证书
B. 培训学习;作业资格证书
C. 培训考核;特种作业资格证书
D. 培训考核;作业资格证书
[判断题]柜员销售基金及证券产品的,除具备总行个人银行理财产品销售资格外,还应具备证券业协会证券投资基金从业资格或通过基金销售人员资格。( )
A.正确
B.错误
[单选题]用一个恒定电流RS和一个电导G0并联表示一个电源,这种方式表示的电源称( )。
A.电压源
B.电流源
C.电阻源
D.电位源
[单选题][单选]支撑架高宽比大于3时,应增设连墙件等加强措施,保证()。
A.强度
B.刚度
C.稳定性
D.气密性
[单选题]依据《特种作业人员安全技术培训考核管理规定》的规定,特种作业人员应当符合的条件不包括()。
A.年满16周岁,且不超过国家法定退休年龄
B.具有初中及以上文化程度
C.具备必要的安全技术知识与技能
D.经社区或者县级以上医疗机构体检健康合格
[单选题]请阅读Passage 2,完成第小题。
Passage 2
Among China's greatest art treasures are the Buddhist caves near Dunhuang. Their ancient frescoes and sculptures have survived wars, environmental damage, antiquities hunters, and the chaotic Cultural Revolution.
Today domestic tourism is the biggest threat: the UNESCO World Heritage site has an optimal capacity of 3,000 per day, but peak times can see twice that many visitors.
The Mogao Grottoes are especially vulnerable to mass tourism. Their ecosystems are fragile. A buildup of humidity and carbon dioxide from visitors' breath can lead to flaking and discoloration of wall paintings.
To preserve the caves, the Dunhuang Academy is pioneering a project to digitize the site.
Recently, the Arthur M. Sackler Gallery in Washington,
D.
C., offered a tantalizing glimpse at the undertaking. Donning 3-D glasses, visitors were transported into a breathtaking "virtual" Dunhuang grotto, known as Cave 220. The 3-D, interactive experience is flooded with vivid color, close-up details, moving images of flying bodhisattvas, even sound, "Dunhuang ranks as the single most important repository of early Chinese art. Here the great cultures of the World--Greek and Roman,Persian and Middle Eastern, Indian and Chinese--constantly interacted for over a millennium,"said Mimi Gates, who formed the Dunhuang Foundation. "High-resolution digitization will provide a lasting record of this artistic treasure for all mankind and can make it accessible beyond China."
A dozen years ago, the Dunhuang Academy began cooperating with foregoing institutions to conserve the treasures. Among the projects, one used a camera to create a digital archive of the caves. The results will be used in the academy which planned $40 million state-of-the-art visitor center which will present virtual tour of the caves to save the real site wear and tear. The scope of the project is daunting. It requires 20 minutes or so to record a 9-square-meter fresco, and there are 492 caves with murals inside. But the Sackler exhibit proved how enthralling the single virtual cave CaB be.
Real caves provide no lightbulbs. Once they reach critical levels of moisture and temperature,they are shut to the public. Only a few dozen caves are accessible at any given time. But the Sackler's virtual tour was different. One of the most popular features was the "magnifying glass",which can zoom in on, say, a zither depicted in a mural. The instrument appears to pop out of the wall, enlarge, and then rotate in space. Visitors can also "flip" back and forth between the intricate Tang-dynasty mural and a later, cruder Sung-dynasty fresco.
To help Cave 220's Tang dancer paintings magically come to life, two Chinese performers were flown to the Applied Laboratory for Interactive Visualization and Embodiment (ALIV
E) in a Hong Kong university. For three days the dancers were filmed performing intricate steps, fluid movements, and careful manipulation of long, sinuous ribbons. They appeared in the Sackler tour,dancing as if in midair, clad in brightly colored Tang costume. ALIVE's project manager said while he's become intimately familiar with the images Cave 220, he hasn't been there yet. "I can't wait to visit the real thing."
Which of the following is the best title for this article?
查看材料
A.Digital Tourism in Future China
B.IT in Arthur M. Sackler's Virtual Tour
C.IT and Presentation of China's Mogao Grottoes
D.China's Fabled Mogao Grottoes Turn to Digital Tourism
[单项选择]电机内部冒火的原因有()。
A. 电枢的电源电压低于额定值
B. 工作电压高于额定值
C. 电机超载
D. 电刷火花过大
[多项选择]材料的供应价包括( )。
A. 货价
B. 供销部门经营费
C. 包装费
D. 运输费
E. 运输损耗费
[判断题]瓦斯空气混合气体中瓦斯浓度越高,爆炸威力越大。()
A.正确
B.错误
[简答题]什么叫浮充电运行方式?怎样掌握浮充电运行不过充电或欠充?
[单选题]进路的自动属性取消时机不正确,可能会导致。 ( )
A.遗留未正常解锁的进路
B.进路始端信号机故障
C. 进路上的道岔需要手摇
D.进路自动属性无法恢复
[判断题]警戒器材在火场或救援现场上主要是用来圈划危险区或安全区范围的装备。( )(易)
A.正确
B.错误
[单项选择]A. the Manager of Office Supplies
B. the Marketing Manager
C. a young junior manager
D. the Managing Director
E. the Training Manager
F. the temporary clerk
G. the Personnel Manager
H. the Sales Manager
[判断题]连接在计算机网络上的主机在数字信道上传送数据的速率,是计算机网络中最重要的一个性能指标。( )
A.正确
B.错误
[多选题]标准是对重复性事物和概念所做的( )。符号GB代表()。
A.一致规定
B.统一规定
C.国家标准
D.全球标准
[单项选择]下列哪项可引起神经精神性呼吸困难
A. 糖尿病酮症酸中毒
B. 脑出血
C. 有机磷农药中毒
D. 重症肌无力
E. 重症贫血
[判断题]ZPW-2000A型无绝缘移频自动闭塞室外地线采用贯通地线
A.正确
B.错误
[单选题]目前使用的绝缘绳索主要分为(____)。
A.白蚕丝绳和锦纶绳
B.白蚕丝绳和白棕绳
C.白蚕丝绳和麻绳
D.白蚕丝绳和尼龙绳
[多选题]政策性金融机构的职能主要包括( )。
A.流动性职能
B.倡导性职能
C.选择性职能
D.效益性职能
E.补充性职能