热门试题:
[单选题]标准状态下将1L血液滴定至pH 7.4时,所需的酸量或碱量的毫摩尔数称为
A.缓冲总碱
B.剩余
C.AB
D.SB
E.P50
[简答题]今后十几年我国人口惯性增长势头依然强劲,总人口每年净增多少人?
[多项选择]患有()等不适宜高处作业的人员不允许进行脚手架作业。
A. 心脏病
B. 高血压
C. 癫痫
D. 糖尿病
[单项选择]急性肾炎合并急性肾功能不全持续尿闭者,不当的处理是()
A. 严格控制液体入量
B. 处理高血钾
C. 用甘露醇利尿
D. 处理低钠血症
E. 用呋塞米利尿
[单选题]当患者胆道完全阻塞时,因胆汁不能进人肠道,粪便呈 ( )
A.鲜红色
B.暗红色
C.柏油样便
D.陶土色
E.果酱样便
[单选题]( )属于特种用途车。
A.毒品车
B.救援车
C.集装箱车
D.冷藏车
[单选题]不违反法律、法规规定的物品,乘客可( )该物品后进站乘车或者改乘其他交通工具。
A.自行处理
B.寄存
C.变卖
D.藏匿
[单选题]下列关于消防员呼救器维护保养说法错误的是( )
A.呼救器使用电池不得用任何其他形式的电池代替
B.呼救器放置时间长,应及时进行检查,及时更换电池或充电
C.本品适用于雨淋和防爆环境下使用,外壳破损、有裂痕不得进入救援现场
D.可以再易燃易爆场所对电池充电
[单项选择]当局部的E-R图集成为全局的E-R图时,可能存在的冲突有( )。
Ⅰ.属性冲突 Ⅱ.逻辑冲突 Ⅲ.结构冲突 Ⅳ.命名冲突
A. Ⅰ,Ⅲ和Ⅳ
B. Ⅰ,Ⅱ和Ⅲ
C. Ⅰ,Ⅱ和Ⅳ
D. 全部
[单选题]《建设工程安全生产管理条例》第30条规定,施工单位对因建设工程施工可能造成损害的毗 邻建筑物、构筑物和地下管线等,应当采取( )措施。
A.特殊防护
B.专项防护
C.强制性保护
D.法定保护
[多项选择]Regarding PAR (Positive Acknowledgement and Re-transmission), which of the answer choices below are correct?()
A. The source device will only retransmit lost packets on the request of the destination device.
B. The source device starts a timer when it sends a segment and retransmits if an acknowledgment is not received before the timer expires.
C. The destination device acknowledges receipt of a segment by sending a packet with a new sequence number and the ACK bit sent.
D. The destination device acknowledges receipt of a segment by sending a packet that indicates the next sequence number it expects.
E. If the destination device does not receive a segment, all segments are retransmitted.
F. The source device keeps a record of all segments sent and expects and acknowledgment of each.
[单项选择]北京用优厚待遇吸引大学生当村官,利大还是弊大,应该是我们评价这个政策的出发点。如果利大于弊,就应该在鼓励的同时,尽可能消除弊端,而不是一棍子打死。
上文的意旨是( )。
A. 北京用优厚待遇吸引大学生当村官利大于弊
B. 北京用优厚待遇吸引大学生当村官弊大于利
C. 评价一件事情的是非功过,应该看整体
D. 一件事情不可能有利无弊
[单项选择]含有特异性抗体的免疫制剂接种于人体后,可立即获得免疫力,这种免疫称为()。
A. 基础免疫
B. 加强免疫
C. 自动免疫
D. 被动免疫
E. 应急接种
[单选题]动火作业中断超过(),继续作业前应当重新确认安全条件。
A.15min
B.30min
C.45min
D.1h
[判断题]境外飞行人员不需要通过背景调查。
A.正确
B.错误
[单选题]睡眠时时惊醒,不易安卧多见于
A.心肾不交
B.胆郁痰扰
C.心脾两虚
D.心阳亏虚
E.心脉痹阻
[单选题]在“四个全面”中,( )具有基础性.保障性作用。
A. 全面建成小康社会
B. 全面深化改革
C. 全面依法治国
D. 全面从严治党
[判断题]工序发生事故时应该优先抢救伤员,并迅速向上级领导和有关部有关部门报告
A.正确
B.错误
[单选题]7.由人们经过分析和评定得到与人们对被测量、影响量及测量过程的认识有关的为.
A.测量不确定度
B.测量误差
C.系统误差
D.偶然误差
[单项选择]患者,女性,45岁,右乳房胀痛已4年余,月经前显著,行经后胀痛缓解,近期症状加重,月经前后均感胀痛且自感触及肿块。如果该病人在右乳房扪及肿块,下列哪项辅助检查对诊断最有价值()
A. 乳房钼靶X线摄片
B. 红外线热图像检查
C. 活组织切片检查
D. B超检查
E. 乳头溢液涂片检查
[判断题]无签证过境旅客不可以无人陪伴旅行
A.正确
B.错误
[判断题]在结账过程中因站务员综合岗漏交票款而导致短款,客运值班员(或票务工作组)应立即报当班值班站长,值班站长立即进行调查,在查明原因属实后报车站站长、车务部票务管理人员并知会经营管理部,经车务部票务管理人员同意后,客运值班员(或票务工作组)对站务员综合岗进行二次结账
A.正确
B.错误
[判断题]案情重大、复杂需要延长立案决定期限的,应当经上级烟草专卖行政主管部门负责人批准,并书面告知当事人。( )
A.正确
B.错误
[多选题]如POE供电,则根据POE交换机类型确定是使用数据线同时传输信号线及供电,还是传输信号线与供电分别使用不同线对,通常供电使用( )线对。
A.白橙/橙
B.白绿/绿
C.白蓝/蓝
D.白棕/棕
[判断题]工作票许可手续完成后,工作负责人向所有工作班成员交待并明确工作地点、任务、人员分工、安全措施及危险点后,所有工作班成员应在工作负责人收执的工作票上签名。
A.正确
B.错误
[单选题]与梗阻性化脓性胆管炎实验室检查结果不符合的是( )。
A.碱性磷酸酶升高
B.尿胆红素阳性
C.尿胆原升高
D.血清结合胆红素升高
E.白细胞计数升高
[单选题]在井口房、井筒和倾斜巷道内进行焊接作业时,必须在焊接作业地点的()用不燃性材料设施接受火星。( )
A.下方
B.上风向
C.下风向
[单选题]有抗疟作用的化学成分是
A.青蒿素
B.京尼平苷
C.鱼腥草素
D.苦参碱
E.小檗碱
[单选题]( )是党的根本组织原则,也是群众路线在党的生活中的运用。
A.民主集中制
B.为人民服务
C.民主评议党员
D.一切依靠群众
[判断题]企业微信中,客户入群欢迎语不支持插入「客户昵称」,直接带入用户信息进行信息发送。
A.正确
B.错误
[单项选择]制作熔模中操作错误的是
A. 尽可能使用成品蜡线来制作
B. 注意制作各部分在标准值不发生改变
C. 注意各部分的连接处不要形成空隙
D. 严格按照支架设计要求
E. 为避免支架就位困难,熔模材料与复制模间应保留一定间隙以免进入软、硬组织倒凹
[单项选择]Americans use the term " college students" to mean students either in colleges or universities. Not only that, Americans almost never say "going off to university" or "when I was in university." That sounds British. Instead, they say "going off to college" and "when I was in college." College, university: what’s the difference Colleges and universities have many things in common. Both offer undergraduate degrees in the arts and sciences, for example. And both can help prepare young people to earn a living. But many colleges do not offer graduate studies. Another difference is that universities are generally bigger. They offer more programs and do more research. Another place of higher education, especially in technical areas, is an institute, like the Massachusetts Institute of Technology. Yet even an institute of technology can offer a wide choice of programs and activities. M.I.T. says that 75 percent of freshmen come there with a strong interest and involvement in the arts. Modern universities developed from those of Europe in the Middle Ages. The word "university" came from the Latin universitas, describing a group of people organized for a common purpose. "College" came from collegium, a Latin word with a similar meaning. In England, colleges were formed to provide students with places to live. Usually each group was studying the same thing. So college came to mean an area of study. The first American universities divided their studies into a number of areas and called each one a college. This is still true. A college can also be a part of a university. For example, Harvard College is the undergraduate part of Harvard University. Programs in higher learning can also be called schools, like a school of engineering or a medical school within university. You know, learning all these terms is an education in itself.Americans use "college students" to refer to students either in colleges or universities, because______.
A. there are more colleges than universities in America
B. colleges and universities are actually the same
C. both colleges and universities can offer degrees
D. colleges and universities have many things in common
[判断题]1996年版100美元和50美元纸币安全线在紫外灯下分别发粉红和黄光。( )
A.正确
B.错误
[多选题]根据《火警和应急救援分级》(GA/T 1340-2016),下列哪项属于四级应急救援?()
A.有少量人员伤亡或被困的应急救援
B.灾情危害程度特别严重,处置难度特别大的危险化学品泄漏、毒气扩散,大量建构筑物发生倒塌
C.灾情危害程度特别严重,处置难度特别大的特大爆炸事故,恐怖事件,严重自然灾害
D.到场后现场指挥员认为三级应急救援到场力量不能控制的灾情
[单选题]螺杆泵螺杆与泵体间隙过大,会造成流量不足,间隙过小会导致( )。
A.流量过大
B.压力过大
C.压力过小
D.电流超高