热门试题:
[判断题]有效的物料搬运作业，不必经过审慎的整体作业分析与评估，就能制定。
[单选题]在所有圆特性的阻抗继电器中，当整定阻抗相同时，( )躲过渡电阻能力最强。
A.全阻抗继电器
B.方向阻抗继电器
C.工频变化量阻抗继电器
D.偏移特性阻抗继电器
[单项选择]提出群体力学理论的是（）
A. 卢因
B. 泰勒
C. 法约尔
D. 麦格雷戈
E. 梅奥
[简答题]68. 旋转电机类型分布式电源接入220/380伏配电网技术要求有哪些？
[单选题]关于现场防护作业，下列说法错误的是（ ）。
A. A.防护联系工作做到全过程记录
B.B. 作业负责人可以兼任防护员
C.C.未按规定设好防护，防护员未到位，作业人员有权拒绝上道
D.D.在长大桥梁上、隧道内等特殊地段，或瞭望距离不足处所作业时，应增设现场防护员
[单选题]道岔和调节器尖轨或基本轨伤损时，宜（ ）更换尖轨和基本轨。
A.单独
B.同时
C.无所谓
[判断题]有的人抢先一步说分手，正是为了回避被抛弃感所带来的痛苦。
[单项选择]
Disease, Diagnosis, Treatment and Prevention
Disease may be defined as the abnormal state in which part or all of the body is not properly adjusted or is not capable of carrying on all its required functions. There are marked variations in the extent of the disease and in its effect on the person.
In order to treat a disease, the doctor obviously must first determine the nature of the illness — that is, make a diagnosis. A diagnosis is the conclusion drawn from a number of facts put together. The doctor must know the symptoms, which are the changes in body function felt by the patient; and the signs (also called objective symptoms) which the doctor himself can observe. Sometimes a characteristic group of signs (or symptoms) accompanied a given disease. Such a group is called a syndrome. Frequently certain laboratory tests are performed and the results evaluated by the physician in making his diagnosis.
Although nurses do not dia
A. Right
B. Wrong
C. Not mentioned
[单选题]办理站应根据危险货物的运量、品类等情况,按铁路危险货物办理站、专用线货运安全设备设施有关技术条件的相关规定配备劳动保护用品和安全检测仪器等有关设施、设备，并按规定定期开展职业危害（ ）。
A.项点检测
B.项点监测
C.因素检测
D.因素监测
[多选题]煤矿井下安全避险“六大系统”是指()。
A.供水施救系统
B.井下人员定位系统
C.紧急避险系统
D.压风自救系统
E.监测监控系统
F.通信联络系统
G.运输系统
[单选题]在站内线路上施工，距施工地点两端各()m处线路中心设移动停车防护。
A.40
B.50
C.100
D.150
[填空题]差压变送器在安装使用前，应进行（）的检定、回程误差的检定、（）试验及严密性试验。
[单选题]对维持血管内外水平衡有重要作用的是
A.血浆晶体渗透压
B.血浆
C.血浆胶体渗透压
D.组织液
E.组织液胶体渗透压
[判断题]低压触电时，因触电者的身体是带电的，其鞋的绝缘也可能遭到破坏，救护人不得接触触电者的皮肤，也不能抓他的鞋。
A.正确
B.错误
[填空题]Over the past few decades, more and more countries have opened up the markets, increasingly transforming the world economy into one free-flowing global market. The question is：Is economic globalization 50 for all
According to the World Bank, one of its chief supporters, economic globalization has helped reduce 51 in a large number of developing countries. It quotes one study that shows increased wealth 52 to improved education and longer life in twenty-four developing countries as a result of integration (融合) of local economies into the world economy. Home to some three billion people, these twenty-four countries have seen incomes 53 at an average rate of five percent—compared to two percent in developed countries.
Those who 54 globalization claim that economies in developing countries will benefit from new opportunities for small and home-based businesses. 55 , small farmers in Brazil who produce nuts that would originally have sold only in 56
A. A．remain
B．drop
C．shift
D．increase
[单项选择]商业承兑汇票的提示付款期限，自汇票到期日起( )天。
A. 10天
B. 5天
C. 1个月
D. 半年
[判断题]在选择网上支付的时候，为了方便管理商务的进行，选择尽量单一的支付方式是明智的选择。
[多选题]办理携带品暂存手续时，必须填写暂存票，注明（ ）等。
A.品名
B.包装
C.日期
D.件数
[单项选择]有关烧伤创面的处理，哪项错误（）。
A. 大面积烧伤病人入院后立即给予彻底清创
B. 较大且完整的水疱宜清除水疱液
C. 头、颈和会阴部烧伤创面适用于暴露疗法
D. 尚不能准确判断深Ⅱ度或Ⅲ度烧伤创面时，宜采用削痂疗法
E. 浅度烧伤创面宜采用包扎疗法
[单选题] 以太网的标准是 IEEE802.3, 使用( )介质访问控制方法。
A.CSMA/CD
B.令牌环
C.令牌总线
D.令牌环.令牌总线
[单项选择]属于牙龈固有纤维的是（）
A. 牙槽脊组
B. 环形组
C. 水平组
D. 斜行组
E. 根尖组
[单选题]补偿a、b值的安全值为安装曲线值( )。
A.+200mm
B.+300mm
C.±200mm
D.±300mm
[判断题]商用房贷款的还款支付方式有委托扣款和柜台还款两种。 （ ）
A.正确
B.错误
[多选题]劳动力成为商品的基本条件是 （ ）
A. 劳动力具有使用价值
B. 劳动者没有生产资料和其它生活来源
C. 劳动者有人身自由
D. 劳动力具有价值
[多选题]可使用其他书面记录或按口头、电话命令执行的工作有（）。
A.测量接地电阻
B.砍剪树木
C.涂写杆塔号、安装标志牌
D.低压分支线的停电工作
[单选题]《铁路客运运价规则》第四条规定，在国务院批准的价格内，经国家物价主管部门同意，国务院铁路主管部门可根据（）的需求实行浮动价格。
A.旅客
B.企业效益
C.社会效益
D.运输市场
[单选题] ( )是规章制度的普遍特征。
A. 灵活性
B. 严肃性
C. 动态性
D. 独特性
[单选题]航路、航线飞行或者转场飞行的安全高度，在高原和山区应当高出航路中心线、航线两侧各25千米以内最高标高
A.400米
B.500米
C.1000米
D.600米
[单选题] 因为燃气锅炉采用全自动燃烧、并有前、后吹扫功能,因此在停炉期间允许少量燃气在炉膛内留存。
A. 正确
B. 错误
[判断题]闪燃是在一定温度下,易燃、可燃液体表面产生的蒸气,当与空气混合后一遇着火源就会产生一闪即灭的燃烧现象。( )(中)
A.正确
B.错误
[判断题]有机物的运输方向取决于当时植物的生长状况
A.正确
B.错误
[填空题]
The United Nations has reported that{{U}} (31)
{{/U}}progress is being made in the fight{{U}} (32) {{/U}}malaria in
Africa. The UNICEF website says the area that is{{U}} (33) {{/U}}the
most dramatic improvement is sub- Saharan Africa. This is the region hardest hit
by the{{U}} (34) {{/U}}One of the biggest reasons for these gains
against the killer infection is the increased use of special insect nets.
This{{U}} (35) {{/U}}solution can reduce child deaths by as much as 20
percent. The{{U}} (36) {{/U}}says the number of children using the
insecticide- treated{{U}} (37) {{/U}}has tripled since 2000. According
to UNICEF’s Executive Director Ann Veneman, controlling malaria is vital{{U}}
(38) {{/U}}improving child health and economic{{U}} (39)
{{/U}}in affected countries. Studies show that malaria unfairly affects the
poorest people in these countries, and contributes to their poorer{{U}} (40)
{{/U}}conditions.
UNICEF prepar
[多选题]配电箱中的断路器在正常情况下可用于( ).
A.接通与分断空载电路
B.接通与分断负载电路
C.电源隔离
D.电路的过载保护
E.电路的短路保护
[单选题]正常飞行过程中如关断1号发电机按钮（GEN1）会出现什么情况？
A.AC1因GEN1线路接触器在断开位而由GEN2供电
B.在按压BUSTIE按钮前，AC1失去供电，因为GEN1线路接触器在断开位，且汇流条连接器没有闭合
C.AC2给主交流汇流条供电，并由主交流汇流条给AC1供电
[判断题]《煤矿安全规程》第四十四条规定:软岩使用锚杆支护时,必须全长锚固。( )
A.正确
B.错误
