题目详情
题目详情:

[单项选择]关于RGB正确的描述的是( )
A. 色光三元色
B. 印刷用色
C. 一种专色
D. 网页用色

热门试题:

[单项选择]以下引起急性胰腺炎的原因中,最常见是()
A. 胆、胰管开口梗阻,胆汁逆流
B. 饮酒
C. 流行性腮腺炎
D. 穿透性消化溃疡
E. 胰腺外伤
[判断题]监督检查不得影响被检查单位正常的生产经营活动;监督检查不能在没有根据的情况下随意地查封或责令停产停业。( )[913000000]
A.正确
B.错误
[单选题]CRH380B型动车组空气弹簧附加空气室是转向架( )。
A.上枕梁
B.构架横梁
C.构架侧梁
D.纵向辅助梁
[单项选择]

The preschool movement can be traced back as far as the 4th century B.C. When Plato stressed the importance of early childhood, and the necessity of family co-operation. A study of ancient history reveals that some of the early philosophers, preachers(布道师) and educational reformers considered the significance of parent-child relationships, and made plans for improved education for infants and young children. However, it is in the 17th century that early child hood education as we know it received its impetus(推进).
In the history of education, several educational leaders have made valuable early contributions to the preschool movement. The pioneer work of Comenius, Rousseau, Basedow, Pestalozzi and Froebel in this field is particularly noteworthy. More recently, important additions were made by Montessori, Dewey, and others. Early in the 20th century, organized planning for preschool training led to the introduction of institutions designed specially for this purpose. In En
A. was practiced even in ancient Greece and Rome
B. was not advanced until the 17th century
C. was first accepted in America in the 18th century
D. was denied by Froebel

[多选题]主控按规定时间内匀速将电流加至规定电流,主控( ),主控打开FV04A/B06,控制氢气流量100-500Nm³/h,当炉内压力PI04A/B04高于尾气总管PI04A/B05 10kpa时,开XV04A/B10,并通知巡检开手阀
A.打开XV04A/B08
B.通知现场巡检全开氢气手阀三道手阀
C.打开XV04A/B09
D.通知现场巡检全开氯硅烷手阀三道手阀
[多选题]步行板上不准放置()。
A.路料
B.材料
C.工具
D.杂物
[单选题]有毒气体检测仪PGM7840长按MODE键( )秒,仪器关机。
A.4
B.5
C.6
D.3
[单选题]首届第一类全国“挑战杯”的开幕式在哪里举行?
A.人民大会堂
B.清华大学主楼大厅
C.上海交通大学主楼大厅
D.西安交通大学报告厅
[填空题]为了防雷击电磁脉冲,所有进入建筑物的外来导电物均应在()与()的界面处做等电位连接。
[判断题]通入氯气精炼时,起精炼作用的是氯气与Al和H反应生成的气体。
[判断题]取得《燃气经营许可证》的燃气经营企业在许可证规定的经营区域范围外设立的瓶装供应站、加气站、各类瓶组气化站等站点和单位为内部生产设立的各类供气站必须取得站点所在地燃气管理部门颁发的《燃气(供应站)经营许可证》后方可从事燃气供应活动。( )
A.正确
B.错误
[单项选择]一户人家养了四只猫,其中一只猫偷吃了他家里的鱼。主人对它们进行审问,只有一只猫说了真话。这四只猫的回答如下:
甲:“乙是偷鱼贼。”
乙:“丙是偷鱼贼。”
丙:“甲或者乙是偷鱼贼。”
丁:“乙或者丙是偷鱼贼。”
根据以上陈述,请确定以下哪项陈述为假?()
A. 甲不是偷鱼贼。
B. 乙不是偷鱼贼。
C. 丙说真话。
D. 丁说假话。
E. 乙说假话。
[判断题] (判断题) 采用多址接入技术可以提高无线系统的容量。
A.正确
B.错误
[单选题]把两个5 Ω的电阻串联与10 Ω的电阻并联则总电阻为()
A.15 Ω
B.5 Ω
C.10 Ω
D.20 Ω
[单项选择]

Witchcraft, also called black magic, is the power or practices of witches. Western people used to believe that witches had supernatural powers. they were supposed to be able to call up spirits and make them do evil things. Their special helping spirits are called "familiars", who take the form of animals, particularly cats, snakes, owls, and dogs.
Some people believed witches had the power to change into animals. This power enabled them to travel about secretly. Witches also were said to be able to fly. They flew by riding brooms or rakes, or riding magical animals. Witches had great knowledge of how to make magical potions and charms, which were used to change people’s behavior. Witches were believed to be able to see into the future. They were also believed to have the evil eye—that is, the ability to harm or kill by looking. When crops failed, horses ran away, cattle sickened, wagon broke, women miscarried, or storms destroyed house, a witch was a
A. Witches had the ability to change into animals.
B. Witches had the ability to harm or kill by looking.
C. Witches were able to see into the future.
D. Witches were able to change people into animals.

[填空题]裁弯取直工程的引河进口布置原则是(),侧面排沙。
[多选题]安全生产知识考核内容包括建筑施工安全的( )等。
A.法律法规
B.规章制度
C.标准规范
D.建筑施工安全管理基本理论
E.报告和处置生产安全事故
[单选题]消防设施的联动运行情况在火灾报警控制器、联动控制盘及图形显示装置上有对应的显/指示。反馈灯为(  )
A.红色
B.绿色
C.蓝色
D.黄色
[判断题]依据《中国南方电网有限责任公司电力事故事件调查规程》,非计划停运或被迫停运。是指设备立即从可用状态改变到不可用状态,或设备损坏修复后未达到额定容量(参数)、额定运行工况的状态。
A.正确
B.错误
[单选题]23散射线的主要成份是低能电磁辐射,它是由光子在哪一过程中减弱而产生的( )。
A.光电过程
B.康普顿过程
C.电子对过程
D.电离过程
[单项选择]下面的设备中,既可以做输入设备也可以做输出设备的是
A. 打印机
B. 磁盘
C. 触摸屏
D. 扫描仪
[单项选择]Mr. Brown often comes back home after his wife and the child are asleep.
[单选题]酱制菜肴一般是现制酱汁现酱,不留( )。
A.酱汁
B.油汁
C.水汁
D.汤汁
[简答题]试述肿瘤的免疫治疗方法。
[单项选择]隔膜泵主要是由()两大部分组成。
A. 传动部分和螺杆
B. 活塞和隔膜缸头
C. 螺杆和活塞
D. 传动部分和隔膜缸头
[填空题]如果把从动杆的()量与凸轮的()之间的关系用曲线表示,则此曲线就称为从动杆的位移曲线。
[判断题]在采煤工作面前方煤岩体内形成的支承压力为固定支承压力。()
A.正确
B.错误
[判断题]高层民用建筑消防电梯的行驶速度, 应按从首层到顶层的运行时间不超过lmin 计算确定。
A.正确
B.错误
[单项选择]用寒远寒,用热远热属于
A. 扶正祛邪
B. 因地制宜
C. 因人制宜
D. 因时制宜
E. 未病先防
[简答题]现在许多大城市房价偏高,使很多老百姓买房变得困难,你如何看待这样的房地产热?
[单选题]由于光信号来自远近不同的光网络单元(ONU),所以可能产生相应的信号冲突,所以EPON系统采用()
A.突发同步技术
B.大动态范围光功率接受
C.测距补偿技术
D.带宽分配技术
[单选题] 根据刑法规定,对于连续犯或者继续犯追诉期限的起算,是从( )
A.实施犯罪预备行为时起算
B.着手实行犯罪时起算
C.犯罪行为终了之日起算
D.危害结果发生时起算
[填空题]行车闭塞法包括()、()、()、()四种。
[简答题]简述地籍测量的特点。
[填空题]医师应当在注册的医疗机构签名留样或者专用签章()后,方可开具处方。
[单选题]需要()操作设备的配电带电作业工作票和需要办理工作许可手续的配电第二种工作票,应在工作前一天送达设备运维管理单位。
A.带电作业人员
B.运维人员
C.监控人员
D.值班调控人员

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