热门试题:
[单选题]采用热装法安装滚动轴承时,首先将轴承放在油锅里煮,轴承约煮( )。
A.2min
B.3~5min
C.5~10min
D.15min
[单项选择]哪个不属于《担保法》规定的担保方式()
A. 抵押
B. 质押
C. 留置
D. 出借
[多项选择]碳素结构钢的牌号由以下()部分组成。
A. 代表屈服的字母
B. 屈服点数值
C. 质量等级代号
D. 炉子种类
E. 脱氧方法
[单项选择]在SQL的ALTER TABLE语句中,为了增加一个新的字段应该使用短语( )。
A. CREATE
B. APPEND
C. COLUMN
D. ADD
[单选题]因事故导致严重的外部出血时,应( )。
A.清洗伤口后加以包裹
B.用布料直接包裹,制止出血
C.用药棉将流出的血液吸去
[不定项选择题]共用题干
Prolonging Human Life
1. Prolonging human life has increased the size of the human population.Many people alive to-day 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.
2. 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.
3. 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,somebody 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 insurance,they must often"go on welfare"if they have a serious illness.
4. 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 often profit-making organizations,although some are sponsored by religious and other nonprofit groups.While a few of these institutions arc good,most of them are simply"dumping grounds"for the dying in which"care" is given by poorly paid,overworked,and under-skilled personnel.
Many people would have died of______if they had been born 100 years ago.
A.too weak and ill
B.hunting and gathering cultures
C.childhood diseases
D.no one at home
E.epidemic diseases
F.traditional cultures
[单选题]对螺杆钻具使用中的故障描述中,错误的是()。
A. 压力表压力突然升高
B. 压力表压力慢慢增高
C. 有进尺
D. 压力表压力缓慢降低
[单选题]验收报告在电缆竣工验收结束后,应由()进行编写。
A.施工部门
B.设计部门
C.运行部门
D.监理部门
[单选题]使用棚敞车运输易腐货物,应按“易腐货物使用棚敞车运输条件表”的规定办理,对未规定具体条件的易腐货物,托运人应事先与发站商定试运条件,报()批准。
A.上级主管部门
B.铁路局
C.铁道部
D.货运部门
[单项选择]有关胃癌扩散转移途径不正确的是
A. 可转移到左侧锁骨上淋巴结
B. 可种植到盆底
C. 可转移到脐周淋巴结
D. 可血行转移到肝脏
E. 不会转移到卵巢
[判断题] DX-31 型信号继电器采用掉牌的方式作为动作指示。( )
A.正确
B.错误
[单选题]新能源汽车一般满电存放多长时间需要再次充电( )
A.1个月
B.3个月
C.5个月
D.7个月
[多选题]事故按形成的因素可分为( )。
A.
责任事故
B.
冒顶事故
C.
淹溺事故
D.
高空坠落
E.非责任事故
[单项选择]下列诸因素中不属于大骨节病病因的是()
A. 环境硒水平过低
B. 真菌毒素污染玉米
C. 饮用水有机物污染严重
D. 真菌毒素污染小麦
E. 环境放射性物质污染
[多项选择]下列哪些符合用金属材料制成的屏护装置的安全条件()。
A. 遮栏高度不应低于1.7m,下部边缘离地不应超过0.1m
B. 户内临时栅栏高度不应低于1.2m,户外不低于1.5m
C. 户外变电装置围墙高度一般不应低于1.5m
D. 对于低压设备,网眼遮栏与裸导体距离不宜小于0.15m
[判断题]热风阀是安装在热风主管上的。( )
A.正确
B.错误
[判断题]普速铁路成段破底清筛、更换钢轨或轨枕,无缝线路应力放散等一般属于 I 级施工。
A.正确
B.错误
[判断题]承运人与托运人或收货人在办理货物交接的同时,应办理货车篷布(包括自备篷布)交接。
A.正确
B.错误
[单选题]下列关于紧线、挂线说法正确的是()。
A.挂线时,过牵引量严格执行设计要求,停止牵引前作业人员可从安全位置到挂线点操作
B.在完成地面临锚后可不用在操作塔设置过轮临锚
C.导线地面临锚和过轮临锚的设置应相互独立
D.设置过轮临锚时,锚线卡线器安装位置距放线滑车中心不小于2~5m
E./
F./
[单项选择]Clerk: Jack's Watering Hole.
Caller: Oh, I'm calling about the ad for an designer, ______
Clerk: Yes, it is. What kind of experience do you have
A. Is that still available
B. Is it a good job
C. Is it very hard
D. Is it OK with me
[单选题]当母液酸度大于34%时,母液中的晶体主要是(___).
A.硫酸铵
B.硫酸氢铵.
C.硫酸氢二铵
D.没有晶体
[单选题]平行投影根据投射线与投影面是否垂直的位置关系可被分为正投影和( )。
A.垂直投影
B.斜投影
C.侧投影
D.中心投影
[判断题]根据《安全事故调查规程》, 与安全事故(事件)相关的单位均是即时报告责任主体
A.正确
B.错误
[单选题]以下关于放映幻灯片的说法正确的是(____)。
A.按F5键,将从当前幻灯片开始放映$
B.$按Shift+F5组合键,将从第一张幻灯片开始放映$
C.$用户不能自己定义幻灯片的放映顺序$
D.$将某张幻灯片设置为隐藏后,在全屏放映幻灯片时将不显示此幻灯片
[单选题]( )对金融机构的一般事务及会计事务进行监督,是商业银行的监督机构,对股东大会负责。
A.监事会
B.党委
C.纪委
D.董事会
[单选题]一般情况下,直线上接触网支柱侧面限界( )。
A.大于2500mm
B.小于2500mm
C.大于2600mm
D.小于2600mm
[判断题]分部试运行(包括分部试验),应由检修或运行负责人主持,有关检修人员和运行人员参加。( )
A.正确
B.错误
[判断题]. 电弧电流的本质是离子导电。
A.正确
B.错误
[判断题]电焊作业台应可靠接地。在狭小或潮湿地点施焊时,应垫以木板或采取其他防止触电的措施,并设监护人。
A.正确
B.错误
[单选题]交流滤波器(并联电容器)退出运行后再次投入运行前,应满足()要求。
A.电容器充电时间
B.电容器输送功率
C.电容器放电时间
D.电容器充放电时间
[判断题]配电终端与主站之间的业务数据采用基于国产对称密码算法的加密措施,实现配电终端与主站间的身份鉴别。( )
A.正确
B.错误
[简答题]王老伯,79岁,患有慢性风湿病及其他多种疾病。只有小学文化的他,育有两子一女,现在三个孩子都拒绝和他同住,一周前把他送入了养老院。王老伯在养老院里非常孤僻,不愿和其他老人交往,甚至不愿离开自己的房间,还常常无缘无故发脾气。
[问题]
在上述案例中,王老伯面临的困境主要有哪些
[判断题]各变电站应制定变电站消防器材布置图,标明检查时间、数量和消防器材类型,消防器材按消防布置图布置。
A.正确
B.错误
[填空题]柴油机空载检查,将主手柄置于升速位时(无级调速机车),柴油机转速在( )s 内均匀升到 1000r/min。
[填空题]钢轨类型的选择要根据运输条件综合考虑。在经济上要能保证合理的( ),减少养护维修工作量。