热门试题:
[单项选择]某歌星举行个人独唱音乐会,一次性取得收入60000元。根据规定,其应纳个人所得税为( )元。
A. 12200
B. 12400
C. 14400
D. 16000
[填空题]违反“改善球位、挥杆区域和打球线”规则的处罚是比洞赛(),比杆赛()
[单选题]公务用车实行集中管理。不得公车私用,不得用于( )等非公务活动。
A.旅游
B.公务
C.勤务
D.公差
[单项选择]七情致病,多导致哪几个脏腑生病?()
A. 脾、肾、心
B. 心、脾、肺
C. 心、肝、肾
D. 心、肝、脾
E. 肝、脾、肺
[单选题]美元纸张坚韧耐磨,其主要成分为( )。
A.全棉
B.特制木浆
C.棉和亚麻纤维
[判断题] 在冰雪道路上行车时,机动车的稳定性降低,加速过急时车轮易空转或溜滑。
A.正确
B.错误
[单选题]CRH1的牵引电动机额定功率为( )。
A.255kW
B.260kW
C.265kW
D.270kW
[单选题]电力二次系统网络中,加密认证网关除了具有加密认证装置的功能外,还应实现对电力系统数据通信(____)协议及报文的处理功能。
A.会话层
B.传输层
C.应用层
D.表示层
[单选题]下列回路属于方向控制回路的是(
A.换向、锁紧
B.调压、减压
C.调速、切换
D.制动、卸荷 )。
[单项选择]乳婴儿喂养添加辅食的原则错误的是
A. 由少到多
B. 由稀到稠
C. 由细到粗
D. 一种一种和一点一点地加
E. 同时添加几种
[单项选择]肾血流灌注不足时,每h尿量一般少于()。
A. 10ml
B. 30ml
C. 50ml
D. 70ml
E. 100ml
[多选题]列车运行监控装置(LKJ)具有( )等功能。(应知应会-《技规》-90条)
A.报警
B.监控
C.记录
D.显示
[不定项选择题](2017年)某重污染河流,污染早期BOD 5、NH 3-N的降解系数K BOD5=0.20/d,K NH3-N=0.15/d。目前河流污染加重,溶解氧浓度小于0.5mg/L,近期规划中,K BOD5和K NH3-N取值较为合理的有( )。
A.K BOD5=0.20/d,K NH3-N=0.15/d
B.K BOD5=0.3/d,K NH3-N=0.10/d
C.K BOD5=0.10/d,K NH3-N=0.10/d
D.K BOD5=0.05/d,K NH3-N=0.05/d
[判断题]固定催化剂本身及其构成的催化床层对反应没有影响。
[填空题]算法的复杂度主要包括时间复杂度和______复杂度。
[判断题]城乡居民养老保险业务可以跨机构、跨网点办理。
A.正确
B.错误
[单选题]调车人员禁止在()上,在平车、砂石车的边端或端板支架上坐立。
A.罐车通过台
B.机车脚踏板
C.车钩
D.车梯
[单选题]被代理人对无权代理行为追认后,该代理关系()。
A.自追认后有效
B.自始无效
C.自始有效
D.在相对人同意后有效
[判断题] 抗美援朝战争伟大胜利,是中国人民站起来后屹立于世界东方的宣言书。
( )
A.正确
B.错误
[判断题]不需要高压线路、设备停电或做安全措施的配电运维一体工作,可使用其他书面记录或按口头、电话命令执行。
A.正确
B.错误
[多选题]除常规试验项目,SF6绝缘电流互感器需开展的关于气体的试验有( )等。
A.气体密封性检测
B.气体密度表(继电器)校验
C.SF6气体纯度分析
D.SF6气体湿度
[不定项选择题]A startup company in California is using machine learning and arificial itelligence to advise fire departments about how to plan for earthquakes and respond to them. The company hopes its algorithms can take a lot of the guesswork out of the planning process for disaster response by making accurate predictions about earthquake damage. I's one of a handful of companies rolling out atificial itelligence and machine learning systems that could help predict and respond to foods, cyber-attacks and other large- scale disasters.
Nicole Hu, the company's chief technology oflicer, says the key is to feed the computers three mam categories of data. The first is data about homes and other buildings, such as what materials they're made of, when they were built and how likely they are to collapse when the ground starts shaking. The next category is data about the natural environments. For example. "What is the soil like" What is the elevation like? What is the general humidity like?" explains Hu. The third thing we look at is live instant data." she says, such as the magnitude of the quake, the trafic in the area of the quake and the weather at the time of the quake. The computer uses the information to make predictions about what would happen if an earthquake occurred in a particular area. It then uses data from past earthquakes to see whether its predictions are any good, and revises its predictive models accordingly. In other words, it learns as it gocs, which is basically how machine learning works.
Stanford University earthquake engineer Gregory Deierlein consulted for the company. He says one of the most remarkable things about the company's software is its ability to incorporate data from an earthquake as its happening. and to adjust its predictions in real time. "Those sort of things used to be research projects." says Deierlein " After an event, we would collee data and a few years later we' d produce new models." Now the new models appear in a matter of minutes. He note the company's exact methods are opaque. "Like many startup companies they're not fully transparent in everything they're doing." He says.“I mean, that's their proprietary knowledge that they're proprietary knowledge that they're bringing to it."Nonetheless, some first responders are already convinced the software will be useful. Fire chief Dan Ghiorso leads the Woodside Fire Protection District near San Francisco, which covers 32 square miles. The San Andrea's fault is only a couple hundred feet behind the firehouse. Ghiorso says in the past, when an earthquake hit, he 'd have to make educated guesses about what parts of his district might have suffered the most damage, and then drive to each place to make a visual inspection. He hopes the company' s software will change that, although he has yet to put it to the test during an actual quake." Instead of driving thity two square miles, in fifteen minutes on a computer Ican get a good idea of the concerns." he says,“instead of me, taking my educated guess, they re putting science behind it, so I' m very confident." Unfortunately, it's going to take a natural disaster to see if his confidence is justified.
What is NOT needed for training the earthquake predicting software?
A.Data about past earthquakes
B.Data about human impacts
C.Data about the geographic conditions
D.Data about the buildings
[单项选择]下列有关外观设计专利权保护范围的说法哪些是正确的?()
A. 以请求书和简要说明为准
B. 以说明书和图片或者照片为准
C. 以表示在图片或者照片中的该外观设计专利产品为准
D. 以产品名称和简要说明为准
[单项选择]与急性肾小球肾炎有关的细菌是
A. 大肠杆菌
B. 绿脓杆菌
C. 金黄色葡萄球菌
D. β-溶血性链球菌
E. 表皮葡萄球菌
[多项选择]随着生产的发展,我国环境污染问题日益严重。这些污染问题主要表现为()。
A. 大气污染
B. 水污染
C. 噪声污染
D. 固体废物污染
[单项选择]学是对具体事物进行抽象的产物,是从哪方面来说的()
A. 数学的特点
B. 数学的起源
C. 数学的产生
D. 数学的发展
[单选题]编组、区段站及比照区段站办理和有驻站调机的中间站,对穿
越( )的调车作业计划应在下达前进行审核并在调车作业通知单上签名, 强化安全控制。
A.到发线
B.正线
C.货物线
D.岔线
[单项选择]对于外阴鳞癌的发病因素以下哪项说法是恰当的()
A. 外阴癌多为单发疾病,不易与宫颈癌等同时发生
B. 患有外阴色素减退疾病的患者,半数以上可-以发展成为外阴癌
C. 目前研究显示HPV只与宫颈癌的发病密切相关,而与外阴癌的发病无关
D. 免疫抑制与外阴癌的发病有直接关系
E. 外阴部若受到乳头瘤、尖锐湿疣等的长期刺激有发展成外阴癌的可能
[单选题]根据《消防救援队伍信息化发展规划(2019~2022)》,消防信息化“四横四纵”总体框架中的“四纵”是指什么?
A.广域覆盖的消防感知网络、集约融合的基础通信网络、开放共享的数据支撑体系、智慧联动的业务应用体系
B.科学实用的标准规范体系、安全可靠的运行服务保障、众创众智的科技生态体系、高效协同的联动工作机制
C.广域覆盖的消防感知网络、安全可靠的运行服务保障、众创众智的科技生态体系、智慧联动的业务应用体系
D.科学实用的标准规范体系、安全可靠的运行服务保障、开放共享的数据支撑体系、智慧联动的业务应用体系
[单项选择]能护卫肌表、防御外邪入侵的是()
A. 元气
B. 宗气
C. 卫气
D. 营气
E. 清气
[单选题]有限空间作业信息公示牌应如实填写()。
A.周边环境情况
B.作业人员姓名
C.作业信息
[多选题]日本航空自卫队编有( )
A.航空总队
B.航空支援集
C.航空教育集团
D.航空开发试验集团
E.防卫大臣直辖的其他空军部队
[判断题]螺纹道钉锚固时,手持道钉,顺着锚固架钉孔中心,左右旋转慢慢垂直插入,待硫磺熔融物凝固后撤除锚固架。( )
A.正确
B.错误
[多选题]换热设备包括( )
A.余热锅炉
B.换热器
C.冷凝器
D.反应器
[单选题]司机在发现轨行区积水后,当积水超过轨面10cm时,该区段()通过;
A.限速5km/h
B.限速15km/h
C.限速25km/h
D.不限速
[单项选择]下列对虚拟建设的描述正确的是( )。
A. 通过电子技术进行沟通
B. 设计和施工相结合
C. 设计方、施工方、监理方有机的结合
D. 业主方、工程项目管理方、设计方、供货方横向联系的管理技巧
[判断题]成套接地线应用有透明护套的多股软铜线和专用线夹组成,且高压接地线的截面积不得小于16mm2。
A.正确
B.错误
[单选题]在屋顶及其他危险的边沿工作,临空一面应装设安全网、防护栏杆或( )。
A.A、装设脚手架
B.B、使用保安绳
C.C、配置防护用品
D.D、使用安全带