热门试题:
[判断题]根据公文内容的性质和作用，公文可以分为通用公文和专用公文。 （）
A.正确
B.错误
[多项选择]信息系统的总体规划需要解决以下三个方面的内容，即（）。
A. 信息系统的总目标和发展战略
B. 了解企业当前信息系统以及管理状况
C. 了解竞争企业的信息系统发展状况
D. 对相关信息技术发展的预测
E. 可行性分析报告
[单项选择]男孩，4岁，因智能发育落后就诊，头发呈金黄色，皮肤色白，时有抽搐，不伴发热，无腹泻，为协助诊断，应首选（）
A. 脑电图检查
B. Cuthrie试验
C. 尿三氯化铁试验
D. 尿蝶呤分析
E. 血钙、磷检测
[单选题]( )当转子的临界转速低于工作转速______时，才有可能发生油膜振荡现象。
A.4/5
B.3/4
C.2/3
D.1/2。
[单选题]依据《中国南方电网有限责任公司电力安全工作规程》，接地线或个人保安线应（ ）、连接可靠。
A.长短适中
B.接触良好
C.粗细均匀
D.重量恰当
[单选题]以下IP地址中可用作某台主机IP地址的是()。
A. 62.26.1.256
B. 202.119.24.5
C. 78.0.0.0
D. 223.268.129.1
[单项选择]广告作为CIS的一部分，必须与CIS保持高度的（）。
A. 关联性
B. 交叉性
C. 均衡性
D. 一致性
[单选题]有爆炸危险工房内照明灯具和电开关，应选用防爆型。电开关应安装在( )。
A.室内门旁
B.室外门旁
C.室内明灯附近
[多选题]7至9级高明度亮色调给人的心理感受
A.清新
B.明快
C.华美
D.稳重
[单项选择]三相异步电动机的旋转方向与通入三相绕组的三相电流（）有关。
A. 大小
B. 方向
C. 相序
D. 频率
[多项选择]风险具有的特征有（）。
A. 负面性
B. 不可测性
C. 确定性
D. 不确定性
E. 可测性
[判断题]帧中继技术是在OSI第4层上用简化的方法传送和交换数据单元的一种技术。
[多项选择]下列属于信号标志的是（）
A. 坡度标
B. 管界标
C. 司机鸣笛标
D. 警冲标
E. 公里标
[单选题]自动控制系统安全措施主要是防止雷击等自然灾
害损坏系统和人的( )造成的损坏。
A.误操作
B.故意破坏
C.不安全行为
D.技术低下
[判断题]我国债券市场形成了包括银行间市场和交易所市场两个子市场在内的统一分层的市场体系。（ ）
A.正确
B.错误
[单项选择]（）是中国制宪建国的动力机制。
A. 革命
B. 改良
C. 复兴
D. 民权
[填空题]The modern age is an age of electricity. People are so used to electric lights, radios, televisions, and telephones that it is hard to{{U}} (36) {{/U}}what life would be like without them. When there is a power failure, people{{U}} (37) {{/U}}about in faint candlelight, cars {{U}} (38) {{/U}} in the streets because there are no traffic lights to guide them, and food {{U}} (39) {{/U}}. in silent in refrigerators.
Yet people began to understand how electricity works only a little more than two centuries ago. Nature has{{U}} (40) {{/U}}been experimenting in this field for millions of years. Scientists are discovering more and more that the living world may hold many interesting {{U}} (41) {{/U}} of electricity that could benefit {{U}} (42) {{/U}}
All living{{U}} (43) {{/U}}send out tiny pulses of electricity.{{U}} (44) {{/U}} The brain, too, sends out brain waves of electricity, which can be recorded in an electric device. {{U}}(45) {{/U}}—often so small th
[多项选择]甲乙签订水果购销合同，约定由甲方送货，甲与丙签订运输合同，如期发运价值10万元的水果一车。丙送货途中，因洪水冲垮公路，被迫绕道，迟延到达，导致水果有轻微的腐烂现象。乙方以逾期交货和货物不符合合同约定为由拒收货物且拒付货款。丙多次与乙交涉无果，发现水果腐烂迅速扩大，当即决定以6万元价格将水果就地处理。下列选项哪些是正确的
A. 水果价值减少的损失应由甲方承担
B. 水果价值减少的损失应由丙承担
C. 丙为就地处理水果的费用应向乙要求偿付
D. 丙为就地处理水果的费用应向甲方要求偿付
[判断题]按现行税法，金银首饰、木质一次性筷子和实木地板使用的消费税税率均为5%。（）
[单项选择]下面关于S-Designer的说法错误的是
A. S-Designer具有可视化的设计界面和自动生成功能，使设计变得简便
B. S--Designer 能创建和管理数据库的概念数据模型、物理数据模型和分析处理模型
C. 在CDM和PDM中，只支持从CDM到PDM，不支持从PDM到CDM
D. S-Designer可以生成与应用开发工具有关的应用对象
[判断题]短时间退出防误操作闭锁装置，由防误专责人批准，并应按程序尽快投入。
A.正确
B.错误
[判断题]在串联电路中，等效电阻等于各电阻的和。
A.正确
B.错误
[单项选择]下列哪一个椎间盘突出能使跟腱反射改变
A. L4、5
B. S1、2
C. L5、S1
D. L3、4
E. L2、3
[不定项选择题]资料：Directions : There is 1 passage in this part. The passage is followed by some questions or unfinished statements. For each of them there are four choices , You should decide on the best choice.
Your face is the future of smartphone security. Apple made that clear last week when it unveiled the pricey iPhone X. Apple claims to have conquered many of the challenges that have prevented the widespread use offacial biometrics. But a number of computer-vision researchers say they are skeptical that a smartphone-based system like FaceID can account for things like variable lighting conditions or subtle changes in a person's appearance to create a secure-yet-practical way to unlock a phone a dozen or more times a day.
Apple’s new technology does sound promising. The company says FaceID creates a “precise depth map” of one’s visage by projecting more than 30,000 infrared dots against a person’s face, then using the phone’s infrared TrueDepth camera and high-power microchip to collect and analyze the results. Users are also asked to turn their head as they scan so the phone's machine-learning algorithm can measure the face from several angles and create a more detailed 3-D map of their features. Once the map is created and stored, the iPhone X uses infrared light to help FaceID scan a person’s face even in the dark. Meanwhile, machine-learning algorithms running on the phonekeep track of changes in a person's appearance—including glasses, facial hair and hats—so the smartphone’s accuracy improves over time.
Despite advances in facial recognition in recent years, it remains unclear whether FaceID will work in a variety of conditions while also keeping the iPhone X secure. Hackers, for example, quickly found a way to bypass the Samsung Galaxy S8's facial-recognition scanner when it was introduced in March: They tricked the device by simply showing it a photo of the user. FaceID’s use of 3-D facial maps could address that problem. But historically it has been a big challenge for such a system to recognize faces under different lighting conditions and from a variety of angles.
Apple showed off FaceID last week under relatively controlled conditions, says Arun Ross, a professor of computer science and engineering at Michigan State University. "Clearly the demo was very interesting," he says. "But at the same time some extraordinary claims were made." Apple' s Schiller said, for example, that the chance a random person' s face could unlock someone else' s iPhone X was one in a million——much more secure than TouchI
D. Ross says, however, that it is not clear how often FaceID fails to recognize its owner. When contacted, Apple declined to elaborate on Schiller' s comments.
“Like all biometrics, FaceID will have a problem with revocation,” says Vitaly Shmatikov, a computer science professor at Cornell Tech. “If a password is compromised, it can be changed—but a face cannot be changed.” Apple touts its ability to secure data on its iPhones, which do not share biometric information with the company’s servers. Still, Ross says, hackers always seem to find a way around even the tightest security.
What is the computer-vision researchers’ main concern of iPhone X’ s FaceID?
A.They have concerns of the security and convenience of FaceI
A.
B.They don’ t believe iPhone X’ s FaceID can successfully unlock a phone every time.
C.They have doubts of its technique to overcome variable lighting and subtle change of the user’s face.
D.They are mainly worried about the smartphone’ s accuracy.
[单选题]以下哪个不属于施工索赔种类的有()。
A. 工程量变化索赔
B. 施工条件变化索赔
C. 设备窝工索赔
D. 工人工伤索赔
[单项选择]成年男性患者，热烧伤80%，合并中度吸入性损伤，伤后4小时来院就诊。体检及化验发现：体温36℃，心率160次/分，呼吸28次/分，血压测不到，导出40ml血红蛋白尿。遂立即快速补液，于2小时内输入5%葡萄糖溶液1500ml，生理盐水500ml；随后，病人心率高达180次/分，呼吸加快，双肺可闻及啰音，咳血性泡沫样痰。
为了明确诊断，应进一步做哪些检查( )
A. 血生化检查
B. 尿常规化验
C. 监测血压
D. 动脉血气分析
E. 检测中心静脉压
[单选题]123.水解聚丙烯腈钾盐主要用途为( )钻井液的防塌降滤失剂。
A.A、聚合物
B.B、分散型
C.C、淡水及盐水
D.D、钙离子
[单选题]爱国敬业是职业道德的( )，是社会主义职业道德所倡导的首要规范，是职业道德建设的首要环节。
A.基础与核心
B.本质和中心
C.前提和条件
D.责任和义务
[单选题]饮酒后驾驶机动车一次记几分？
A.2分
B.3分
C.6分
D.12分
[判断题] 进行水域事故处置,被救上岸的溺水者,应迅速移交医疗急救人员进行现场急救。如无医务人员到场,救援人员要对被救人员进行现场急救,并及时送往就近医院实施抢救。( )
A.正确
B.错误
[判断题]缴费年限包括视同缴费年限和实际缴费年限。()
A.正确
B.错误
[单项选择]下列选项中，（）不属于通常所采用的防护技术。
A. 数据备份
B. 身份认证
C. 数据加密
D. 在线监视
[单选题]柱上断路器如果电源良好，铁芯动作无力，铁芯卡涩或线圈故障造成拒跳，可能是(____)。
A.电气故障
B.机械故障
C.电气和机械两方面同时存在故障
D.操作不当
[单选题]1.32不具有载货结构，或者虽具有载货结构但核定载质量( )小于_______的专项作业车，核定为无载货功能的专项作业车( )。
A.100
B.1000
C.1800
D.3500
