热门试题:
[单选题] [ZJJK03-01-X] ( )的作用是阻隔地层流体与外界连通,而保持高的压力状态。
A.生油层
B.储油层
C.运移
D.圈闭层
[多选题]污水的化学处理法主要方法有:( ) 等。
A.中和
B.混凝
C.氧化还原
D.离子交换
[多选题]飞机遇有突发性中度颠簸,乘务员的处置有:( )
A.立即停止服务,在原地踩好刹车
B.目视监控客舱,对旅客的呼叫可稍后处理
C.乘务员回座位,系好安全带
D.热饮收入餐车底部
[单选题]( )提出“手术团队”理念
A.1864年
B.1876年
C.1880年
D.1894年
E.1904年
[判断题]被判处有期徒刑以上刑罚被假释的犯罪分子,从假释开始之日起,在5年以内再犯应当判处有期徒刑以上刑罚之罪的,是累犯。
A.正确
B.错误
[单项选择]最常见的女性生殖器官良性肿瘤是
A. 子宫颈肌瘤
B. 子宫肌壁间肌瘤
C. 畸胎瘤
D. 子宫浆膜下肌瘤蒂扭转
E. 卵巢纤维瘤
[单选题]列车在区间被迫停车后,对于邻线上妨碍行车地点,应从两方面按( )处防护,
如确知列车开来方向时,仅对来车方面防护。
A.200m
B.300m
C.线路最大速度等级规定的列车紧急制动距离位置
D.100m
[单选题]采用螺栓联接的车钩托梁,须用( )螺栓安装并加装背母和φ4mm开口销,开口销须卷起。
A.AM18
B.BM20
C.CM22
D.DM24
[多选题]精准营销在精准定位的基础上,依托现代信息技术手段建立( )。
A.针对性营销活动
B.个性化的顾客沟通服务体系
C.精准定位体系
D.高效的客户关系网络
[单选题]如触电者处于高处,应采取相应措施,防止该伤员脱离电源后自高处坠落形成(____)。
A. 摔伤
B. 复合伤
C. 撞伤
D. 误伤
[单选题]( )不属于常见的触电形式。
A.地线触电
B.两相触电
C.跨步电压触电
D.感应电压触电
[单选题]( )54 正常情况下,列车未进入轨道区段时,轨道继电器的状态为()。
A.吸起
B.落下
C.缓放
D.缓吸
[单选题]张某在结婚前盖了一间小平房,盖房的钱是张某的父亲所出,结婚后,张某的妻子王某认为小平房不显气派,就在小平房上另外盖了一层,并将小平房重新修缮了一番,形成一座漂亮的二层楼。5年后,张某在外打工时认识一富婆,回家要求离婚,但是双方对二层楼的归属发生争议,张某认为此房屋是婚前所盖,虽然后来有所改变但是是在平房的基础上进行的,因此是他的;王某认为二层楼是自己一手改造的,应该属自己所有。下列关于二层楼的归属说法正确的是()。
A.应当由张某和王某共同所有
B.张某的父亲出钱盖的小平房应视为赠与,小平房应属张某所有,在婚后又进行了重大修缮,房屋价值增加,增加的价值部分才是夫妻共同财产
C.张某的父亲掏钱盖的小平房,应该由张某的父亲与张某共同所有
D.张某的父亲出钱盖的小平房,应该由张某、张某的父亲和王某共同所有
[单选题] 钢铁的退火处理用来 ( ) 。
A.增加柔软性
B.增加硬度 ( 脆性 )
C.增加韧性
[判断题]资源合理开发利用和生态环境保护是可持续发展的目的。 ( )
A.正确
B.错误
[单项选择]水压试验中用水必须是( )。
A. 自来水
B. 蒸馏水
C. 清洁水
D. 沸腾水
[单项选择]试指出下述说法中,哪一种是错误的()。
A. 根据色谱峰的保留时间可以进行定性分析
B. 根据色谱峰的面积可以进行定量分析
C. 色谱图上峰的个数一定等于试样中的组分数
D. 色谱峰的区域宽度体现了组分在柱中的运动情况
[单选题]向有车线摘、挂车辆时,从调车列前端进入该线起,最高速度不得超过( )km/h。
A.20
B.5
C.30
D.15
[多选题]下列关于跨越架搭设与拆除的说法正确的是( )。
A.跨越架的搭设应有搭设方案或施工作业指导书,并经审批后办理相关手续
B.跨越架架体的强度,应能在发生断线或跑线时承受冲击荷载
C.搭设或拆除跨越架应设专责监护人
D.跨越架搭设前应进行安全技术交底
[判断题]钻井液粘度过低,对井底清洗不良,携砂能井眼净化效果差,容易引起卡钻等井下事故。[1分]
A.正确
B.错误
[判断题]维生素的日常摄入量若保持在安全摄人范围内,则发生缺乏和中毒的危险性都很小。( )
A.正确
B.错误
[判断题]在电气施工中,必须遵守国家有关安全的规章制度,安装电气线路时应根据实际情况以方便使用者的原则来安装。( )
A.正确
B.错误
[多项选择]遇光极易氧化,使其分子内脱氢,产生吡啶衍生物的药物有
A. 硝苯地平
B. 尼群地平
C. 去甲肾上腺素
D. 肾上腺素
E. 维拉帕米
[多选题] 焊接环形链出现( )情况之一时应予报废。
A.裂纹
B.未进行负荷试验
C.链条发生塑性变形,伸长达原长度的5%
D.链环直径磨损达原直径的10%
E.使用后未保养
[单项选择]牛膝在天麻钩藤饮中的主要作用是()
A. 活血祛瘀
B. 补肝肾,强筋骨
C. 利尿通淋
D. 引血下行
E. 排脓止痛
[判断题]持用低等级的车票,乘坐高等级列车,座席,铺位时,补收所乘区间的票价差额。
A.正确
B.错误
[单选题]患者,女性,45岁,脘腹痞闷,胸胁胀满,心烦易怒,善太息,呕恶嗳气,大便不爽,舌质淡红,苔薄白,脉弦,治疗首选方剂是
A.泻心汤合连朴饮
B.补中益气汤
C.越鞠丸合枳术丸
D.保和丸
E.益胃汤
[多选题]典型的数字万用表是在直流数字电压表的基础上加入(____)构成的。
A. 交流电压变换器
B. 交直流电流变换器
C. 电阻变换器
D. 功率变换器
[单选题]全口义齿基托吸附力的大小与下列哪项因素没有直接关系( )
A.唾液的黏稠度
B.基托磨光面是否光滑
C.基托面积大小
D.基托与黏膜接触紧密程度
E.唾液的量
[单项选择]定滑轮不能改变牵引的速度,但能够改变绳子受力的______。
A. 方向
B. 大小
C. 省力一半
D. 省力的1/3
[单选题]根据国家现行职业卫生监管工作分工,用人单位的职业卫生监督检查由( )负责。
A.安全生产监督管理部门
B.卫生行政部门
C.人力资源社会保障部门
[单选题]根据《合同法》的规定,执行政府定价或政府指导价的,在合同履行过程中()。
A.在合同约定的期限内政府价格调整时,按订立合同时的价格计价
B.逾期交付标的物的,遇价格上涨时,按照原价执行
C.逾期提取标的物的,遇价格上涨时,按照原价执行
D.逾期提取标的物的,遇价格下降时,按新价执行
[判断题]列车运行图是铁路行车组织工作的基础。( )
A.正确
B.错误
[多选题]下列不符合马克思主义政党理论的说法有()。
A.政党是超阶级的政治团体
B.阶级性是政党的根本属性
C.任何政党都重视争取群众的支持
D.政党无所谓组织结构
[单选题]在动车组停车( ) 内,按压列控人机界面DMI的目视键无效。
A.2min
B.5min
C.10min
[单选题]消防救援人员因公与非消防救援人员接触时,应当做何种礼节?
A.敬礼
B.主动致意
C.握手
D.鞠躬
[单选题]请阅读短文,完成此题。
Here's a warning from health experts: Sitting is deadly. Scientists are increasingly warningthat sitting for prolonged periods--even if you also exercise regularly--could be bad for yourhealth. And it doesn't matter where the sitting takes place at the office, at school, in the car orbefore a computer or TV--just the overall number of hours it occurs.
Research is preliminary, but several studies suggest people who spend most of their dayssitting are more likely to be fat, have a heart attack or even die.
In an editorial published this week in the British Journal of Sports Medicine, Elin Ekblom-Bakof the Swedish School of Sport and Health Sciences suggested that authorities rethink how theydefine physical activity to highlight the dangers of sitting.
While health officials have issued guidelines recommending ~nini~num amounts of physicalactivity, they haven't suggested people try to limit how much time they spend in a seated position.
"After four hours of sitting, the body starts to send harmful signals," Ekblom-Bak said. Sheexplained that genes regulating the amount of glucose and fat in the body start to shut down.
Even for people who exercise, spending long stretches of time sitting at a desk is still harmful.Tim Armstrong, a physical activity expert at the World Health Organization, said people whoexercise every day--but still spend a lot of time sitting--might get more benefit if that exercisewere spread across the day, rather than in a single bout.
That wasn't welcome news for Aytekin Can,31, who works at a London financial company,and spends most of his days sitting in front of a computer. Several evenings a week, Can alsoteaches jiujitsu, a Japanese martial art involving wrestling, and also does Thai boxing.
"I'm sure there are some detrimental effects of staying still for too long, but I hope that beingactive when I can helps," he said. "I wouldn't want to think the sitting could be that dangerous."
Still, in a study published last year that tracked more than 17,000 Canadians for about adozen years, researchers found people who sat more had a higher death risk, independently ofwhether or not they exercised.
Figures from a US survey in 2003-2004 found Americans spend more than half their timesitting, from working at their desks to sitting in cars.
Experts said more research is needed to figure out just how much sitting is dangerous, andwhat might be possible to offset those effects.
"People should keep exercising because that has a lot of benefits," Ekblom-Bak said. "Butwhen they're in the office, they should try to interrupt sitting as often as possible," she said."Don't just send your colleague an e-mail. Walk over and talk to him. Stand up."
What is the main idea of this passage?
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A.People should keep exercising.
B.Exercising may not reduce the harm of sitting.
C.Sitting for long time is deadly.
D.How to eliminate the harm of sitting.