热门试题:
[单选题]依据《农村电网低压电气安全工作规程》(DL/T477—2010)第13.3条规定:电能表与电流互感器、电压互感器的配合安装时,应有防止( )的安全措施。
A.电流互感器二次开路和电压互感器二次短路
B.电流互感器二次短路和电压互感器二次短路
C.电流互感器二次开路和电压互感器二次开路
D.电流互感器二次短路和电压互感器二次开路
[单项选择]语句Line(100,100)-(500,500),Vbred,BF的功能是()。
A. 在窗体上绘制一个红色的空心矩形
B. 在窗体上绘制一条红色的实线
C. 在窗体上绘制一个红色的实心矩形
D. 在窗体上绘制一条红色的点划线
[填空题]2月27日下午,十二届全国人大常委会第七次会议经表决通过了两个决定,分别将()确定为中国人民抗日战争胜利纪念日,将()确定为南京大屠杀死难者国家公祭日。
[判断题]蓄电池爆炸多是由于蓄电池过充电或蓄电池内部短路及硫化故障所造成。( )
A.正确
B.错误
[单选题]下面说法中正确的是( )
A.一个完整的计算机系统是由微处理器、存储器和输入/输出设备组成
B.计算机区别于其他计算工具的最主要特点是能存储程序和数据
C.电源关闭后,ROM中的信息会丢失
D.16位字长计算机能处理的最大数是16位十进制数
[判断题]HUB和交换机的主要区别是背板带宽的不同,其它功能相同。
A.正确
B.错误
[单项选择]()进入井筒是由于破坏了由重力作用建立起来的油水平衡关系。
A. 上层水
B. 下层水
C. 底水
D. 夹层水
[单项选择]附子除散寒止痛、回阳救逆外,又能()
A. 补火助阳
B. 强筋健骨
C. 理气和胃
D. 降逆止呕
E. 温肺化饮
[判断题]个人住房贷款是我国最早开办、规模最大的个人贷款产品。截至2008年11月,全部国内商业银行人民币贷款余额的一半由我国个人住房贷款余额构成。()
A.正确
B.错误
[填空题]公司各级领导应运用多种形式对职工进行经常性的全面质量教育,树样板、抓典型,使广大职工真正认识到()的重要性,树立()的思想。
[判断题]当宽则宽,当严则严。有从宽情节的,一定要从宽;有从严情节的,一定要从严,否则就会失去政策的威力。 ( )
[判断题]生产经营单位应当积极推进安全生产标准化建设,实现安全管理、设备设施、作业现场、操作过程的标准化,夯实安全基础,保证安全生产。()
A.正确
B.错误
[单项选择]吊水楼瀑布位于( )景区。
A. 镜泊湖
B. 五大连池
C. 天池
D. 白水河
[单选题]《民用航空空中交通管理运行单位安全管理规则》第十七条规定,在同一运行区域内或在相邻运行区域运行时,各民航空管运行单位之间,民航空管运行单位与航空营运人、机场管理机构等有关单位之间,应当通过( )明确各自的安全职责和措施。
A.合同
B.协议
C.条款
D.约定
[单项选择]装修工程完工并提出验收时,应该在()个工作日内组织相关人员进行验收。
A. 一
B. 二
C. 三
D. 四
[判断题]【技能鉴定2019 高级技师】67.雷电流在波前部分上升速度di/dt为雷电流陡度( )。
A.正确
B.错误
[填空题]堆排序是对直接选择排序的改进,在第一次选择出最小关健分码的同时为以后的选择准备了条件,堆实质上是一棵______树结点的层次序列。
[判断题]剥线长度应根据焊接连接器具体型号而定,电缆端部绝缘护套层及填充物应剥除干净,不能损伤线芯、绝缘层和断股。( )
A.正确
B.错误
[单项选择]
Scientists believe that people "dressed up" long before they made a habit of wearing clothes. Primitive man dressed himself in feathers and ornaments, or painted his body and wrapped himself in animal skins. It was probably some time before man discovered that the decorations kept him warm and protected him from-various injuries. Even today, millions of people who wear little clothing use ornaments and decorations.
When primitive people began to wear clothing regularly, they had to make it from the materials at hand, In cold regions, they often used the skins of fur-bearing animals as protection against the cold. In warmer regions of the world, the people dressed themselves in clothing made from leaves, tree bark and woven grasses. Some people scraped the hair from animal skins to make soft leather for their clothes.
Linen was the first woven material from which clothes were made. From very early times, men have known how to make flax into fine linen. In
A. Sheep can be raised easily and can live in varied climates.
B. Linen was difficult to produce.
C. People liked to wear wool.
D. Fine linen only could be worn by rich people.
[单项选择]Many management writers have discussed the idea of satisfying customers’’ needs and wants. (0) Despite the vast amount of information available on customers, finding out exactly what they require is a challenge that certain companies, such as Sainsbury’’s and Marks and Spencer, have found extraordinarily difficult to meet. (9). In a report written by the research company Business Intelligence, 50 % of companies felt that their marketing communications were ineffective and 85% said that any attempt to gain customer loyalty failed.
The two extremes of marketing can be summarized by looking at the difference between the East and the West. (10). Biros, socks, Light bulbs—if it can be made and distributed then there is a market. In the prosperous West, it is the other extreme. Such is the attraction of profit that the marketing specialists are competing with some incredibly sophisticated advertising for some rather simple products! (11). The Internet is also adding another dimension to
[单项选择]AIDS患者常见的恶性肿瘤()
A. 卡波济肉瘤
B. 淋巴瘤
C. 直肠癌
D. 结肠癌
E. 鼻咽癌
[单项选择]
竖直向上运动的物体,受到的重力为15N,受到的空气阻力为5N,若取竖直向下为正方向,那么它受到的合力为()
A. 20N
B. -20N
C. 10N
D. -10N
[单选题]关于二氢埃托啡(Dihydroetorphine),下列说法不准确的是
A.是埃托啡的氢化衍生物
B.镇痛作用强于吗啡
C.镇痛作用强于埃托啡
D.不易成瘾
[单选题]及时查处违规违纪问题,做到( )。
A.有法可依、执法要严、违法必究
B.有法必依、执法必严、违法必究
C.有法要依、执法要严、违法要究
D.有法能依、执法必严、违法必究
[判断题]汽包内的水应保持充满状态。
A.正确
B.错误
[单选题]不成对的淋巴干是
A.肠干
B.颈干
C.支气管纵隔干
D.腰干
[判断题]冷却系统的作用是使受热零件和机油得到冷却。
[单选题]在电焊作业或其他有火花、熔融源等的场所使用的安全带或安全绳应有( )。
A.绝缘护套
B.塑料护套
C.隔热防磨套
D.保护套
E./
F./
G./
H./
[单项选择]有关短暂性脑缺血发作,下面哪一项不正确
A. 突然起病
B. 神经系统局灶性体征,24小时内恢复
C. 常反复发作
D. 神经系统局灶体征3天后完全恢复
E. CT(-)
[多项选择]动脉粥样硬化的独立危险因素主要有______。
A. 高血压
B. 高脂血症
C. 肥胖
D. 糖尿病
E. 吸烟
[多选题]32. UPS稳压电源的输出电压为()
A.A.AC380V
B.B.DC380V
C.C.AC220V
D.D.DC220V
[多项选择]颈椎病患者X线正位片上可能见到( )
A. 钩椎关节增生
B. 生理前凸消失
C. 椎间隙狭窄
D. 椎间孔缩小
E. 颈椎棘突排列不在一直线上
[单项选择]将人类社会的演进过程划分为前工业社会、工业社会和后工业社会三个历史时期的学者是( )。
A. 贝尔
B. 费希尔
C. 克拉克
D. 佩鲁
[填空题]常用标准溶液氢氧化钠其物质的量浓度为(),1升溶液含溶质克数为(),基本单元是()。