热门试题:
[多选题]依据南网安规，在室外构架上工作，悬挂的标示牌有哪些？（ ）
A.“止步，高压危险!”
B.“从此上下!”；
C.“禁止攀登，高压危险!”
D.“禁止合闸”
[判断题]安全生产责任制度不包括班组人员的安全生产责任。
A.正确
B.错误
[判断题]低压电气设备电压等级为1000V以下。（ ）
A.正确
B.错误
[单选题]下列不属于受热自燃的是（ ）。
A.接触灼热物体
B.摩擦生热
C.热辐射作用
D.物质氧化生热
[单项选择]70%～75%乙醇的消毒灭菌机制是
A. 蛋白质变性和凝固
B. 损伤细胞膜
C. 破坏DNA
D. 氧化作用
E. 烷化作用
[单项选择]52岁的男性病人，有胃溃疡病史，近日来上腹部疼痛加剧，医嘱做粪便隐血试验。应给病人哪一组菜谱( )
A. 卷心菜，五香牛肉
B. 菠菜，红烧青鱼
C. 菱白，鸡蛋
D. 油豆腐，鸡血汤
E. 青菜，炒猪肝
[多项选择]要人口与环境、资源协调必须采取下列哪些措施（）
A. 大力开发人力资源
B. 合理开发利用自然资源
C. 努力减少重大自然灾害
D. 预测城市化、工业化对环境的影响，并采取有效途径不断改善环境
[判断题]列车需将伤病旅客交站处理及时，车站因推诿耽误旅客抢救时间，可将调车站与责任单位共同列为责任主体。
A.正确
B.错误
[判断题]为了促进经济增长，固定资产投资规模越大越好。 （ ）
A.正确
B.错误
[多选题]禁止实施（ ）危害铁路安全的行为。
A.在铁路线路上放置、遗弃障碍物
B.擅自移动铁路线路上的机车车辆，或者擅自开启列车车门、应急使用列车紧急制动设备
C.在动车组列车上吸烟或者在其他列车的禁烟区域吸烟
D.冲击、堵塞、占用进出站通道或者候车区、站台
[单项选择]All of following should be done by the project manager during project control EXCEPT ______.
A. determine that a change has occurred
B. ensure that a change is agreed
C. make sure all changes are approved by management
D. manage changes as they occur
[单选题] 相同的湿空气以不同流速吹过同一湿物料,流速越大,物料的平衡含水量( )
A.越大
B.越小
C.不变
D.先增大后减小
[单项选择]今世紀最大のピアニストと言われる（）、彼の演奏には聴衆は皆感動した。
A. くらいで
B. だけで
C. だけあって
D. ほどで
[判断题]3D打印机打印出来的产品可以直接使用。这个说法对吗？
[判断题]收款人是指票据到期后有权收取票据所载金额的人，又称票据权利人
[判断题]正线及辅助线采用 60kg/m 钢轨；车场线采用 50kg/m 钢轨，其中车场试车线采用 60kg/m 钢轨。（ ）
A.正确
B.错误
[简答题]怎样用汽车示波器对电磁式轮速传感器进行检测？
[单项选择]下列那项不影响船舶的舵性（）。
A. 空载与满载
B. 浅水与波浪
C. 值班人员的变更
D. 顶流与顺流
[单选题]在野外空旷的地方工作时遇上打雷,应该( ),这样可降低被雷电击中的危险。
A. 赶紧跑
B. 站立原地不动
C. 马上趴在地上
D. 马上蹲在地上
[不定项选择题]共用题干
Prolonging Human Life
Prolonging human life has increased the size of the human population. Many people alive
today would have died of childhood diseases if they had been born 100 years ago.Because
more people live longer,there are more people around at any given time. In fact,it is a decrease in death rates,not an increase in birthrates,that has led to the population explosion.
Prolonging human life has also increased the dependency load. In all societies,people who are disabled or too young or too old to work are dependent on the rest of society to provide for them. In hunting and gathering cultures,old people who could not keep up might be left behind to die. In times of famine,infants might be allowed to die because they could not survive if their parents starved,whereas if the parents survived they could have another child. In most contemporary societies,people feel a moral obligation to keep people alive whether they can work or not. We have a great many people today who live past the age at which they want to work or are able to work;we also have rules which require people to retire at a certain age. Unless these people were able to save money for their retirement,some-body else must support them. In the United States many retired people live on social security checks which are so little that they must live in near poverty. Older people have more illness than young or middle-aged people;unless they have wealth or private or government insur-ance,they must often“go on welfare” if they have a serious illness.
When older people become senile or too weak and ill to care for themselves,they create grave problems for their families. In the past and in some traditional cultures,they would be cared for at home until they died. Today,with most members of a household working or in school,there is often no one at home who can care for a sick or weak person. To meet this need,a great many nursing homes and convalescent hospitals have been built.These are of-ten profit-making organizations,although some are sponsored by religious and other nonprofit groups.While a few of these institutions are good,most of them are simply“dumping grounds”for the dying in which“care”is given by poorly paid,overworked,and under-skilled personnel.
According to the passage,which of the following statements about retired people in the United States is true?
A.Many of them have a very hard life.
B.They cannot live a decent life without enough bank savings.
C.They rely mainly on their children for financial support.
D.Most of them live with their children and therefore are well looked after.
[单选题]防洪工作实行全面规划、统筹兼顾、( )、综合治理、局部利益服从全局利
A.全员防洪
B.科学防洪
C.预防为主
D.安全第一
[判断题]牵引供电构成的回路是：牵引变电所—馈电线—电力机车—钢轨和大地—回流线—牵引变电所。
A.正确
B.错误
[单项选择]机床设备的电气装置发生故障应由（）来排除。
A. 操作者
B. 钳工
C. 电工
[判断题]所有产品改不合格罐的流程打通不属于加氢裂化停工关键步骤。
A.正确
B.错误
[单项选择]有效成分尚未清楚的方剂粗提一般宜采取的提取方法为
A. 煎煮法
B. 浸渍法
C. 渗漉法
D. 双提法
E. 水蒸气蒸馏法
[填空题] 在技术站编组并在邻接区段内的中间站进行摘挂作业的称为( )。
[单选题]–年10月，哪种面额美元纸币发行问世（）
A.100美元
B.20美元
C.50美元
D.1美元
[单项选择] In the late 1860’s, taxes were changed in the southern US to require payment from plantation owners-------just from landless individuals.
A. despite
B. whereas
C. rather than
D. other than
[单选题]哪类化合物用Borntrager反应检查
A.苯醌
B.萘醌
C.蒽酚
D.羟基蒽醌
E.二蒽酮
[单项选择]胸前、外侧区肌由胸肌和部分腹肌组成，由浅至深可分为4层，属于第1层的肌是（）。
A. 胸大肌
B. 胸小肌
C. 前锯肌
D. 肋间肌
E. 胸横肌
[单项选择]下列各存储器中，存取速度最快的一种是( )。
A. Cache
B. 动态RAM(DRAM)
C. CD-ROM
D. 硬盘
[多选题]渣浆泵采用变频调速的好处有（ ）。
A.利于降低泵发生汽蚀的可能性
B.耗能增加
C.减少了动态转矩，在很大程度上能消除水锤效应
D.流量调节范围小
E.延长了泵和管道系统的寿命
[单项选择]《导游人员管理条例》规定，导游人员擅自终止导游活动的，由旅游行政部门责令改正，暂扣导游证( )；情节严重的，可吊销导游证并予以公告。
A. 1个月
B. 3～6个月
C. 6～9个月
D. 9～12个月
[多选题]施工单位必须严格执行“三人五簿”制。“三人”指的是（ ）。
A.施工安全生产责任人
B.施工负责人
C.施工安全包保人
D.安全质量监督人
