热门试题:
[单选题]《空调、非空调列车服务质量规范》规定安全踏板制作轻巧牢固,安放平稳,定位放置。警示带印有反光材料制作的()字样及当前、相邻车厢顺号,设置方式、位置统一。
A.“当心滑到”
B.“小心站台空隙”
C.“小心坠落、注意慢行”
D.“请勿靠近、当心坠落”
[判断题]有火灾爆炸危险的厂房内,通风气体可以循环使用。
A.正确
B.错误
[判断题] 长输油气管道测试桩一般埋设在油气流方向管道正上方。
A.正确
B.错误
[判断题]压力容器出现跑、量、滴、漏现象,要及时报告并妥善处理。[1分]
A.正确
B.错误
[多选题]《宪法修正案》(2004年修正)对我国《宪法》作了重要修改,可以依照法律规定对公民的私有财产实行征收或者征用并给予补
偿,但以下哪些情形下不可以?
A.国家为了公共利益的需要
B.国家为了商业利益的需要
C.商家为了自身利益的需要
D.商家为了郊区居民的需要
[单选题]电缆管的埋设深度,一般地区不小于( )米。
A.0.3
B.0.5
C.0.7
D.1
[判断题]我国宗教团体和宗教事务不受外国势力的支配。( )
A.正确
B.错误
[多项选择]在某工程网络计划中,已知工作M自由时差为2天,总时差为5天,监理工程师检查实际进度时发现M仅有的一项紧前工作N持续时间延长了4天,M工作持续时间延长了3天,则()。
A. 既不影响总工期,也不影响M工作的正常进行
B. 将M工作的最早开始时间推迟4天
C. 总工期延长2天
D. 不影响总工期,但对M工作的紧后工作有影响
E. 可能会影响总工期
[判断题]5G加密卡初始注册流程中使用IMSI寻址UDM
A.正确
B.错误
[单选题]《中国铁路总公司关于印发外宾乘车证管理办法的通知》(铁总运2017-22号)规定,使用卧铺的规定。持用外宾乘车证,以本人开始乘坐本次列车开车时刻计算,从22时至次日7时之间,在车上过夜6小时(含6小时)或连续乘车超过( )以上的,准予免费使用卧铺。
A.12小时(含12小时)
B.6小时(含6小时)
C.3小时(含3小时)
D.1小时(含1小时)
[判断题]微型计算机的硬件系统包括主机和外设。
A.正确
B.错误
[判断题]液相色谱中,化学键合固定相的分离机理是典型的液一液分配过程。
[简答题]试论《百年孤独》的主题及其在中西家族小说史上的地位。
[单选题]( )是青岛机场通行证主管单位,负责通行证的核准、制发和监督管理。
A.A.机场公安分局
B.B.青岛监管局
C.C.安全管理部
[单项选择]Why did Mrs. Green go to the travel agency?()
A. By car.
B. Yesterday afternoon.
C. In New York.
D. For some information about travel.
[单选题]李总强调,要想实现胜星的快速健康发展,全员都要从思想上继续“深度全面改造”,科技工作者对科研要“深度勤奋和刻苦钻研,努力实现()”
A.颠覆性创新
B.科技创新
C.技术突破
D.可持续发展
[多选题]《电力监控系统安全防护规定》适用于发电企业、电网企业以及相关()等单位。
A.规划设计
B.施工建设
C.安装调试
D.研究开发
E./
F./
G./
H./
[单项选择]创建一个具有“一对多”关系的列表之间的关系,应当( )。
A. 通过钮带表
B. 通过某个同名字段
C. 通过某个索引字段
D. 通过主索引字段和不同字段
[多选题]计轴区段受扰时,若CBTC列车收到推荐速度,行调(行车值班员)组织列车以______模式按推荐速度正常通过故障区段。( )
A.ATO
B.ATPM
C.IATP
D.RM
[判断题]LAC20179每次登塔作业前,工作班成员对个人使用的坠落防护用品进行全面检查并签字登记,有权拒绝使用检查不合格或存在安全隐患的个人坠落防护用品。( )
A.正确
B.错误
[单项选择]运行中的闸刀发生()时,应设法将闸刀停电处理。
A. 动静触头或连接头发热或金具损坏
B. 底座锈蚀
C. 闭锁锁具锈蚀
[单选题]判断心脏骤停的可靠体征是( )
A.血压测不到
B.颈动脉搏动消失
C.瞳孔散大
D.脉搏摸不到
[单项选择]加油或换油必须经过(),严禁各种杂质进入池内.
A. 一级过滤
B. 二级过滤
C. 三级过滤
D. 检验杂质
[不定项选择题]共用题干
第一篇
Ulcers
Even though ulcers appear to run in families,lifestyle plays more of a role than genetic
(基因的)factors in causing the illness, according to a report in the April 13th issue of
Journal of Internal Medicine. In particular,smoking and stress in men and the regular use
of pain-releasing medicines in women were linked with an increased risk of developing an
ulcer(溃疡).
Overall,61% of ulcer risk appears to be due to environmental factors,such as
smoking,and the remaining 39% is due to genes,according to Dr. lsmo Raiha of the
University of Turkey and colleagues at the University of Helsinki,Finland.Some
researchers had suggested that families may spread Helicobacteria pyloni(幽门螺旋菌),
the bacteria(细菌)that can cause ulcers. However, the new study suggests this is
unlikely,according to the report.
Raiha and colleagues studied data from more than 13,000 pairs of twins to examine
the roles of genetic and environmental factors in the origin of ulcer. Both twins were more
likely to develop an ulcer if the pain were genetically the same as compared with a pair of
fraternal(由两受精卵发育而成的)twins , suggesting that there must be some genetic
susceptibility(敏感性)to ulcer development.
However,the risk was no greater in twins living together compared with twins living
apart,suggesting that shared exposure to
H.pyloni was not to blame." Environmental
effects were not due to factons shared by family members,and they were related to smoking
and stress in men and the use of pain-releasing medicines in women,"the authors write in
their report.
The purpose of the research on twins by Raiha and colleagues was to examine
A.the relationship between family members.
B.the effect of pain-releasing medicines.
C.the roles of genetic and environmental factors in the origin of ulcer.
D.the symptoms of ulcer.
[判断题]使用吊车撤杆时,应先检查有无卡盘或障碍物并试拔。
A.正确
B.错误
[判断题]采用行车闭塞法行车时,一个闭塞分区同时只允许一趟列车占用。
A.正确
B.错误
[单选题]以下允许行驶高速公路的是( )
A.乘用车列车
B.铰接式客车
C.全挂拖斗车
D.联合收割机
[单选题]可伴有小淋巴细胞淋巴瘤的白血病常是
A.急性淋巴细胞性白血病
B.慢性粒细胞性白血病
C.急性单核细胞型白血病
D.急性粒-单核细胞型白血病
E.慢性淋巴细胞白血病
[单选题]直接连通向蛛网膜下隙的( )
A.侧脑室
B.第三脑室
C.第四脑室
D.室间孔
E.外侧孔
[填空题]( )开展票务优惠政策的宣传,降低乘客单程票的使用率。
[单选题]152. MFZ8 型储压式干粉灭火器重量( )㎏。
A.2.0±0.04
B.4.0±0.10
C.6.0±0.16
D.8.0±0.16
[单项选择]自然流产连续3次或以上,每次流产多发生在同一妊娠月份,此种应诊断为()
A. 难免流产
B. 先兆流产
C. 完全流产
D. 稽留流产
E. 习惯性流产
[填空题]In China, when a person sits at a dinner party, he will very often refuse the (11) of food or drink though he is in fact still hungry or thirsty. This might be good (12) to Chinese people, but it is definitely not in the West. In the United States, it is impolite to keep asking someone again and again or press something on him. Americans are very (13) . If they want something, they will ask for it. If not, they will say , "No, thanks." They consider it confusing to (14) telling the facts, even if avoiding the truth is done only to be polite. Americans are taught that "Honesty is the best policy." But in some countries, courtesy might be more important than (15) That’s where misunderstanding occurs, when people from two different countries meet.
[单项选择]男性,35岁,高血压2年,近1年来夜尿多、口渴多饮、乏力,尿常规检查示尿比重低于1.010。筛查首选( )
A. 肾功能及肾脏B超
B. 血尿渗透压测定、血AVP测定
C. 肾上腺CT检查、血醛固酮测定
D. 血尿钾、钠、氯测定
E. 禁水试验
[单选题]下列关于人工气道的建立和管理的描述不正确的是
A.人工气道是将导管直接放入气管或经上呼吸道插入气管所建立的气体通道;
B.人工气道不仅用于机械通气,也用于气道分泌物的引流;
C.人工气道主要指气管切开;
D.人工气道建立后,容易因加湿加温功能丧失、纤毛活动减弱或消失而造成分泌物排出不畅