热门试题:
[单选题]施工特定行车,引导接车并正线通过时,准许列车司机凭特定引导手信号的显示,以不超过( )km/h速度进站。
A.20
B.40
C.80
D.60
[单选题]施工区域应用标准路栏等严格分隔，并有明显标记，夜间施工
人员应佩戴反光（ ），施工地点应加挂（ ）。
A.标示牌、警示牌
B.标志、警示灯
C.标志、警示牌
D.标示牌、警示灯
[判断题]在正线车站、变电所（不含车厂）、OCC大楼等地点进行，不进入行车线路但影响正线接触网供电及400V以上停电作业的为ZE1类（不含动力变检修作业）。( )
A.正确
B.错误
[判断题] PAL制式采用隔行扫描。( )
A.正确
B.错误
[单项选择]男性，60岁，因煤气中毒1天后入院，深昏迷、休克、尿少，属于（）
A. 轻度中毒
B. 中度中毒
C. 重度中毒
D. 慢性中毒
E. 极度中毒
[判断题]ATS设置临时限速不能在车站设置。
A.正确
B.错误
[多选题] 表面沸腾区,表面传热系数增加,热量传递既有单相流体的()还有()换热。
A. 强制对流
B. 表面沸腾
C. 自然对流
D. 辐射换热
[单项选择]儒家道德哲学强调圣贤人格，所谓“士希贤，贤希圣，圣希天”渴慕达到“天人合一”的崇高境界，为了培养这种理想人格，儒家学者在（）一书中把道德修养总括为“三纲领，八条目”。
A. 孝经
B. 大学
C. 论语
D. 春秋
[单选题]下列关于火场逃生不正确的方法是_____。
A.不要往着火点上层跑
B.在夜晚不要穿戴整齐后再往外逃
C.走安全通道逃生。
D.乘电梯逃离现场
[单项选择]患者男性，47岁，间歇左下腹痛1年，伴大便带血2个月，消瘦1个月余。查体：腹部无异常。血CEA45．7μg／L。F-FDGPET／CT显像示乙状结肠局灶性浓聚。该患者经结肠镜活组织检查确诊为乙状结肠中分化腺癌。结肠癌术后1年，血CEA水平进行性升高，临床为鉴别吻合日处肿瘤复发抑或术后瘢痕，效果较好的影像学检查方法是（）。
A. 常规X线
B. CT
C. MRI
D. 超声检查
E. F-FDGPET
[判断题]继电保护使用直流系统在运行中的最低电压不低于额定电压的85%，最高电压不高于额定电压的110%。
A.正确
B.错误
[单项选择]男性，26。岁。半个月前曾腹泻，2d前天下午发觉双下肢乏力，昨天开始步行困难，双上肢上举不能；今天开始不能步行，双手不能持物，排尿稍费力。体检：上肢肌力Ⅱ度，下肢肌力Ⅰ度，膝腱反射消失，巴氏征（-）。来诊当天，应首先做哪种检查最有利于诊断及鉴别诊断（）。
A. 血钾
B. 血肌酸磷酸激酶（CPK）
C. 神经传导速度
D. 腰穿检查脑脊液
E. 胸段脊髓MRI
[单选题]( )为半波整流型继电器。[321010103]
A.JZXC-0.14
B.JZXC-480
C. JZXC-H18
D.JZXC-20000
[单选题]《普速铁路行车组织规则》中规定，始发列车车列编成后，司机须使接通软管的车辆保持制动状态，始发车列编成连结制动软管的数量，由车站在《( 站细 )》内规定。
A.段细
B.班计划
C.站细
D.行车设备检查登记簿
[单选题]空气栓塞发生时病人采取体位( )
A.头高足底右侧卧位
B.头低足高右侧卧位
C.头高足底左侧卧位
D.头低足高左侧卧位
[判断题]停电设备的各端，应有明显的断开点，若无法观察到停电设备的断开点，应有能够反映设备运行状态的电气和机械指示。
A.正确
B.错误
[单项选择]因市场缺陷而引起的资源配置的无效率，人们称之为（）
A. 政府失灵
B. 市场失灵
C. 管理失灵
D. 调节失灵
[单选题]变频器运行时过载报警,电动机不过热,原因可能是( )。
A.变频器过载整定值不合理、电动机过载
B.电源三相不平衡、变频器过载整定值不合理
C.电动机过载、电源三相不平衡
D.电网电压过高、电源三相不平衡
[单选题]车站站台边上画到白线的作用：（ ）
A.使站台显得比较整齐
B.当列车快要进站或开车铃响时，要求站台上人员在白线后面保证安全
C.方便列车员或站务员标准化作业
D.方便列车调车作业安全
[单选题]王某，男，78岁。腹股沟区有一半球形块，基底较宽，回纳块压住深环后，疝块仍可突出，王先生的诊断可能为
A. 易复性斜疝
B. 难复性斜疝
C.嵌顿性斜疝
D.绞窄性疝
E.腹股沟直疝
第十六章A1型题
[单项选择]三羧酸循环的主要生理意义在于（）
A. 动物机体获得能量的主要来源
B. 用于合成柠檬酸等物质
C. 直接产生大量的ATP
D. 产生合成氨基酸的碳骨架
E. 产生合成脂肪的原料
[单选题]在B2012A龙门刨床自动调速系统中,要想稳定负载电流,就应该引入负载电流的( ).
A.正反馈
B.负反馈
C.微分负反馈
[多项选择]慢性化脓性骨髓炎主要X线片为（）
A. 骨质硬化增生
B. 骨膜增生
C. 骨皮质增厚
D. 死骨出现
E. 新生骨形成
[单项选择](79)The Olympic Games are held every four years in a different city in the world. Athletes from many countries compete in a variety of sports which are divided into winter and summer games.
The Olympics began in Greece more than 2,700 years ago. The games were originally part of a religious festival in honour of the Greek Gods. Eventually, the games became the most important festival in all of Greece.
The first recorded Olympic competition was held in 776 B. C. It was held in an outdoor stadium which was about 200 metres long and 30 metres wide. The stadium was in a valley and about forty thousand people watched the event. The first thirteen Olympics consisted of only one race - running.
Since 776 B. C. the games had been held regularly for about 1,200 years. In the year 397 the Olympics were prohibited by the Roman Emperor.
(80) It was not until 1896 that the first Olympics of modern times were held in Athens. From then on the games are held
A. A great variety of events.
B. A field event only.
C. A track event only.
D. Both track and field events.
[单选题]在Windows 7中，通过“用户帐户”组件不能进行____操作。
A.记录帐户流量
B.创建新帐户
C.更改帐户密码
D.更改帐户名称
[单项选择]尿液标本收集容器应符合（）。
A. 由惰性环保材料制成
B. 无需特殊容器
C. 无需干燥
D. 无需带密封口装置
E. 可重复使用
[单选题]不属于五四时期资产阶级教育思潮的是（ ）
A.实用主义教育思潮
B.平民主义教育思潮
C.复古主义教育思潮
D.工读主义教育思潮
[不定项选择题]共用题干
I don't think there is anything wrong with your blood.______(46).If you don't sleep for hours during the early part of the evening,you would be more ready to sleep at bedtime.If you didn't nap after dinner,you would not want to stay up so late,and you would not feel the need to take a sleeping pill.______(47).This helps account for the fact that you feel tired all day.You should get out of the habit of sleeping during the evening. Right after your evening meal,engage in some sort of physical activity一a sport such as bowling,perhaps.______(48).Then go to bed at your usual time or a little earlier,and you should be able to get a good night's rest without taking a pill.
If you can get into the habit of spending your evenings this way,I am sure you will feel less tired during the day.______(49).If so,get up and watch television or do some jobs around your house until you feel sleepy.If you fall asleep and then wake up a few hours later,get up but do not take a sleeping pill.Read a while or listen to the radio,and make yourself a few hours' sleep that night.You will feel better in the morning than you usually feel after taking a pill.______ (50).
The most important thing is to avoid taking that nap right after dinner and avoid taking pills.
________（46）
A.The key to your problem is that long nap after dinner
B.Or get together with friends for an evening of cards and conversation
C.At first it may be hard for you to go to sleep without taking a pill
D.The next night you will be ready to sleep at an earlier hour
E.Having difficulty sleeping is a common problem shared by many people
F.The pill is still working in your system when you get up in the morning
[不定项选择题]共用题干
Alcoholism
1 .Yes,alcoholism can be treated. Alcoholism treatment programs use both counseling and medication（药物治疗）to help a person stop drinking. Most alcoholics need help to recover from their disease. With support and treatment,many people are able to stop drinking and rebuild their lives.
2. A range of medication is used to treat alcoholism. Benzodiazepines（苯二氮平类药物） are sometimes used during the first days after a person stops drinking to help him or her safely withdraw from alcohol. However,these medications are not used beyond the first few days because they may be highly addictive. Other medications help people remain sober（清醒）. One medication used for this purpose is naltrexone（环丙甲经二经吗啡酮) . When combined with counseling,naltrexone can reduce the strong desire for alcohol and help prevent a person from returning to heavy drinking. Another medication, disulfiram（戒酒硫）,discourages drinking by making the person feel sick if he or she drinks alcohol. Though several medications help treat alcoholism,there is no“magic bullet”.Developing new and more effective medications to treat alcoholism remains a high priority for researchers.
3 .Alcoholism treatment works for many people. But just like any chronic disease,there are different levels of success in treatment.Some people stop drinking and remain sober. Others cannot stop drinking for any length of time. With treatment,one thing is clear,however,the longer a person stops drinking alcohol,the more likely he or she will be able to stay sober.
4 .No,alcoholism cannot be cured at this time. Even if an alcoholic hasn't been drinking for a long time,he or she can still return to the drinking habit.To guard against it,an alcoholic must continue to avoid all alcoholic drinks.
The key to cure alcoholism is to avoid all______.
A.stay confused
B.alcoholic drinks
C.medical treatment
D.feel sick
E.in every person
F.stop drinking
[单项选择]不属于脂溶性维生素的是（）
A. 维生素A
B. 维生素B
C. 维生素D
D. 维生素E
E. 维生素K
[单选题]防水闸门来水侧15-25in处,应加设一道挡物( )。
A.风门
B.密闭墙
C.箅子门
[判断题]驾驶出租汽车遇到窄路、坡道、急转弯处会车时，要低速慢行，必要时停车等待。
A.正确
B.错误
[判断题]劳务派遣工年度内因违章违纪问题受到记过及以下处分的，可以参加积分排序。
A.正确
B.错误
