热门试题:
[单项选择]
In our society the razor of necessity cuts close. You must make a buck to survive the day. You must work to make a buck. The job is often a chore, rarely a delight. No matter how demeaning the task, no matter how it dulls the senses or breaks the spirit, one must work. Lately there has been a questioning of this "work ethic", especially by the young. Strangely enough, it has touched off profound grievances in others hitherto silent and anonymous.
Unexpected precincts are being heard from in a show of discontent by blue collar and white. On the evening bus the tense, pinched faces of young file clerks and elderly secretaries tell us more than we care to know. On the expressways middle-management men pose without grace behind their wheels, as they flee city and job.
In all, there is more than a slight ache. And there dangles the impertinent question: Should there not be another increment, earned though not yet received, to one’s daily work&mda
A. they have lost their grace
B. they are tired by the long day’s work
C. they don’t want to see the tense and pinched faces of their clerks and secretaries
D. they are frightened by the profound grievances shown by the young people
[单项选择]男性，60岁。因左侧胸痛、气急进行性加重3周就诊。B超检查发现左侧大量胸腔积液。胸片示除左肺尖可见外，左侧胸腔大片均匀一致的浓密阴影，肋膈角消失。但无气管和纵隔移位。其原因可能是（）
A. 合并肺不张
B. 患侧胸膜增厚
C. 纵隔固定
D. 健侧胸腔压力增高
E. 上述因素综合作用
[单选题]旅客持（ ）可不改签，在当日内完成旅行有效。
A.当日使用一次有效的动车组列车车票
B.动车组列车车票
C.当日使用一次有效的车票
D.24小时内使用一次有效的动车组列车车票
[单选题]交流轨道电路送电端限流电阻在道岔区段限流电阻不少于( )。
A.0.5Ω
B.19Ω
C.2Ω
D.2.5Ω
[单选题]骨髓检查报告属于排除性诊断的是
A.急性白血病
B.慢性白血病
C.多发性骨髓瘤
D.原发性血小板减少性紫癜
E.巨幼细胞贫血
[单项选择]血液流经哪一路径，由动脉血变成静脉血？（）
A. 体动脉→身体各种毛细血管→体静脉
B. 肺动脉→肺毛细血管→肺静脉
C. 肺动脉→左心房→左心室→体动脉
D. 体静脉→右心房→右心室→肺动脉
[单选题]某炼钢厂在3m深的地坑内进行管道焊接,施工过程中需要使用氩气对坑内管道进行吹扫。为防止发生窒息事故,作业前应配备特种劳动防护用品。下列配备的用品中,正确的是( )。( )
A.过滤式防毒面具、防护眼镜
B.防护眼镜、防护手套
C.空气呼吸器、长管面具
[单选题]事故现场照明由( )部门负责,必须满足现场需要。车务、工务、电务、车辆等部门也必须携带照明设备(包括移动照明设备)。(应急处置-《西安铁路局处置铁路交通事故应急预案》-第4.6.4条)
A.供电
B.车务
C.工务
D.电务
[多选题]隧道施工通风按照风道的类型和通风安装位置，通风方式有（ ）。
A.风管式通风
B.射流机通风
C.巷道式通风
D.无风道通风
E.风墙式通风
[单选题]IV度喉阻塞时应采取以下哪种治疗措施
A.立即吸氧,密切观察
B.使用足量抗生素和激素治疗
C.立即行气管切开术
D.积极寻找病因,对因治疗
E.抗休克治疗
[单选题]向在等待空域进行等待的航空器发出更新许可的内容包括（）。
A.新的管制许可界限点或进近许可
B.在新的管制许可界限点之前的全部飞行航线
C.高度
D.A、B和C
[判断题]行车中加速时，若消防车乏力、车速提高不快、发动机有沉闷的感觉，则表示点火提前角太大。( )
A.正确
B.错误
[判断题]社会主义市场经济本质上是法治经济。( )
A.正确
B.错误
[判断题]在接触网导线距轨面高度为5800mm及其以上的线路上使用敞车人力制动机时，作业人员不准踏在高于人力制动机踏板的车帮上或货物上。
A.正确
B.错误
[单项选择]语言形成的关键期是
A. 0～3岁
B. 3～7岁
C. 1～7岁
D. 3～5岁
E. 2～3岁
[单选题]下列哪一个不是NJ2型内燃机车的凸轮轴的作用()
A.打开和关闭进.排气门
B.驱动高压喷油泵
C.将往复运动转换为旋转运动
[单选题]
下列阀门中,不具有方向性的是( )。
A.截止阀
B.调节阀
C.止回阀
D.闸阀
[判断题]在低压配电系统中，标准电压规定线电压为380V，相电压为220V。
A.正确
B.错误
[单选题]滑动轴承轴颈与轴瓦的接触角为（ ）。
A.80°-110°
B.80°-90°
C.90°-120°
D.100°-130°
[单项选择]（）是指将系统（环节）的输出信号经过变换、处理送到系统（环节）的输入端的信号。
A. 输入信号
B. 反馈信号
C. 输出信号
D. 终止信号
[单选题]安全工器具使用前，应检查确认（ ）部分无裂纹、无老化、无绝缘层脱落、无严重伤痕等现象以及固定连接部分无松动、无锈蚀、无断裂等现象。
A.绝缘
B.传动
C.固定
D.外壳
[单选题]建设单位在领取（ ）或者开工报告前，应当按照国家有关规定办理工程质量监督手续。
A.质检报告
B.施工许可证
C.施工进度表
D.财务报表
[多项选择]同属于奇经八脉的郄穴是（）。
A. 水泉
B. 阳交
C. 外丘
D. 交信
E. 金门
[单选题]所有进入电气化区段作业的人员必须按规定佩戴( )。
A.绝缘手套
B.对讲机
C.安全帽
D.劳动防护用品
[单选题]防火门门扇与门框的搭接尺寸不应小于( ) mm。 ( )
A.3mm
B.6mm
C.9mm
D.12mm
[单项选择]years earst
A. 0
B. 1
C. 2
D. 4
[单选题]马克思指出:“动物只是按照它所属的那个种的尺度和需要来建造,而人却懂得按照任何一个种的尺度来进行生产,并且懂得怎样处处都把内在的尺度运用到对象上去。”这说明相比于动物,人的实践具有()。
A.客观实在性
B.社会性
C.自觉能动性
D.历史性
[填空题]LKJ-2000监控装置以（ ）曲线方式显示当前的机车运行速度和刚走行的速度曲线。
[判断题]SF6气体湿度带电检测仪中的电解式湿度检测仪的测量量程：-60°C~0°C （环境温度20°C）。
A.正确
B.错误
[单项选择]We often hear advice from the dermatologists, "You should keep using sunscreen cream--just to be safe". More and more people are questioning about sunscream. Can sunscreen cream help protect me against melanomas How safe are we in applying these chemical cocktails Does it actually stop melanomas, the most dangerous type of skin cancer, from forming As is known to all, sunscreen cream can protect the skin from the harmful effects of sun. The most .important function of it is the prevention of skin cancer. A great number of American people like to use it. Surprisingly, this kind of cancer is increasing in incidence faster than any other cancer in the United States. It seems that sunscreen actually increases the risk of skin cancer. More and more health experts are taking a discommendable attitude to the application of sunscreen.
Researchers show that the earlier finding has many flaws and is unable to prove the exact function because they fail to take into account many exceptio
A. Sunscreen cream is essential in people’s life.
B. The dermatologists prefer to attribute the skin problems to sunshine.
C. People agree with the dermatologists’ opinion on using sunscreen cream.
D. Sunscreen cream actually increases the risk of skin cancer.
[单选题]•0122205446
A.25586
B.25629
C. DictDynamic Load #10:
D.sgim_gd_usrmining.bin
E.2
[单选题]在重大（ ）或者组织重要活动时，可以检阅队伍。
A.节日
B.时期
C.会议
D.时刻
