热门试题:
[判断题]( )当基本闭塞设备不能使用时，应根据车站值班员的命令采用电话闭塞法行车。
A.正确
B.错误
[单项选择]
Therapeutic Touch
A nine-year-old schoolgirl single-handedly cooks up a science-fair equipement that ends up debunking a widely practiced medical treatment. Emily Rosa’s target was a practice known as therapeutic touch (TT for short), whose advocates manipulate patients’ "energy field" to make them feel better and even, say some, to cure them of various ills. Yet Emily’s test shows that these energy fields can’t be detected, even by trained ’TT practitioners. Obviously mindful of the publicity value of the situation, Journal editor George Lundberg appeared on TV to declare, "Age doesn’t matter. It’s good science that matters, and this is good science."
Emily’s mother Linda Rosa, a registered nurse, has been campaigning against TT for nearly a decade. Linda first thought about TT in the late 80s, when she learned it was on the approval list for continuing nursing deduction in Colorado. Its 100,000 trained practitioners (48,000 in the
A. they-didn’t take the offer seriously
B. they didn’t want to risk their career
C. they were unwilling to reveal their secret
D. they thought it was not in line with their practice
[单项选择]
流感病毒的变异速度相当快，即使疫苗每年更新，也不能保证疫苗接种覆盖全部的“当季流行款”。接种流感疫苗，既不能保证百分之百不得流感，还可能导致接种人群出现低烧等副作用。因此，没有必要接种流感疫苗。
以下选项如果为真，不能有效反驳上文结论的是（）
A. 接种流感疫苗可以减少儿童、慢性病患者等高危人群因流感而发生严重并发症的风险
B. 接种季节性流感疫苗可以降低易感人群感染流感病毒的概率
C. 接种流感疫苗后只有极少数人会出现全身反应，且一两天可以缓解，比流感的症状要轻很多
D. 从疾病中恢复过来的人可以获得一定的免疫力，1年内不会再次被同样的流感病毒感染
[单选题]高处焊接作业时应采取措施防止（ ）损坏。
A.安全绳（带）
B.安全帽
C.手持面罩
D.绝缘鞋
[填空题]车站管辖范围内（ ）必须保持整洁，无杂物堵塞通道，地面、墙壁、顶面、玻璃及地徽、站内设备设施等处无乱张贴涂写现象、无蜘蛛网及污迹，站内地面无积水，垃圾箱箱体及周围无污迹杂物，箱内杂物不超过 ()。
[简答题]连挂停留在曲线上的车辆，连挂速度不得超过（ ）km/h。
[判断题]《煤矿安全规程》规定，采用轨道机车运输时,新建大型矿井的井底车场和运输大巷,应当设置机车运输监控系统或者运输集中信号控制系统。（ ）
A.正确
B.错误
[填空题]逻辑功能中，全1出0，有0出1的门电路是（）门电路。
[单选题]可克服血脑屏障，使药物向脑内分布
A.静脉注射
B.皮下注射
C.皮内注射
D.鞘内注射
E.腹腔注射
[单选题] 年7月1日,( )全线建成通车,铁路全长1956公里,最高点海拔5072米,是世界上海拔最高、线路最长的高原铁路。
A. 川藏铁路
B. 青藏铁路
C. 兰新铁路
D. 成渝铁路
[单选题]对新植树株的修剪应在( )进行。
A.夏季
B.入冬前
C.入冬后
D.栽植前后
[单选题]从十二经脉分出的最大分支称之为( )
A.奇经八脉
B.经别
C.络脉
D.皮部
E.经筋
[判断题]待核查账户资金可用于质押人民币贷款或外汇融资、理财业务。
A.正确
B.错误
[单选题]动车组 是指根据制动控制装置的指令，产生空气制动原动力并对其进行操纵和控制的部分。
A.停放制动装置
B.基础制动装置
C.空气制动控制部分
D.压缩空气供给系统
[单选题]指吊时，表示停顿的是（ ）。
A.——
B.●
C.○
D.—
[单项选择]会议主办单位统一订房，一般要与宾馆饭店一方签订合约，合约内容通常不包括（ ）。
A. 房价
B. 订金数目
C. 使用日期
D. 会议内容
[单选题]互感器二次回路通电或耐压试验前，应通知运维人员和其他有关人员，并派（）到现场看守，检查二次回路及一次设备上确无人工作后，方可加压。
A.A.专人
B.B.客户
C.C.他人
D.D.负责人
E.略
F.略
G.略
[单选题]川剧这个原 本_于整个西南地区的大剧种，在云南不如滇剧那样易受当地政府_，在贵州也不易如黔剧那样受到当地政府重视，传播区域就渐渐_到四川和重庆。填人划横线部分最恰当的一项是（）。
A.盛行青睐转移
B.流传关注萎缩
C.留传扶持缩小
D.流行重视局限
[单项选择]Our visit to the excavation of a Roman fort on a hill near Coventry was of more than archaeological interest. The year’s dig had been a fruitful one and had assembled evidence of a permanent military camp much larger than had at first been conjectured. We were greeted on the site by a group of excavators, some of them filling in a trench that had yielded an almost complete pot the day before, others enjoying the last-day luxury of a cigarette in the sun, but all happy to explain and talk about their work. If we had not already known it, nothing would have suggested that this was a party of prisoners from the nearby prison. This is not the first time that prison labor has been used in work of this kind, but here the experiment, now two years old, has proved outstandingly satisfactory.
From the archaeologists’ point of view, prisoners provide a steady force of disciplined labor throughout the entire season, men to whom it is a serious day’s work, and not the rather carefree holiday
A. did not like the prisoners’ carefree attitude to work.
B. were willing to take only a few prisoners to work on the site.
C. were often forced to discipline the prisoners.
D. found that the prisoners worked far better than amateur archaeologist.
[单项选择]流体的伯努利定理（）.
A. 适用于不可压缩的理想流体。
B. 适用于粘性的理想流体。
C. 适用于不可压缩的粘性流体。
D. 适用于可压缩和不可压缩流体。
[单选题]装卸高压熔断器,应戴护目眼镜和绝缘手套,必要时使用( ),并站在绝缘垫或绝缘台上。
A.绝缘杆
B.操作杆
C.绝缘夹钳
D.专用工具
[单项选择]
根据以下资料，回答下列问题。 2011年我国网上购物保持调整发展态势，全年网购总额达到8090亿元，比2010年增长72.90%，占到了全国社会商品零售总额的4.46%，网购人数达到2.12亿。比2010年增长14.59%，占到2011年全国网民数的41.50%，比2010年提高了0.9个百分点。某调查机构选取4大区域中最具代表性的30个城市为目标调查地，调查数据显示，2011年这30个城市共有8636万个网购消费者。网购总额占到当年全国网购总额的44.67%。服装是网上购买人数和购买金额均最多的商品类别。2011年中国服装网购市场总额为全年网购总额的33.00%，年增长率高于总体网购市场增长率20.60个百分点。
2011年4大区域中购物网站的市场份额(%) | 抽样城市归类个数 | A网站 | B网站 | C网站 | D网站 | E网站 | F网站 | 其他 |
| 京沪穗深(4个) | 58.1 | 9.8 | 3.4 | 2.2 | 3.2 | 2.9 | 20.4 |
| 东部城市(14个) | 75.2 | 3.5 | 3.5 | 1.6 | 1.5 | 1.2 | 13.5 |
| 中部城市(8个) | 71.7 | 4.8 | 3.1 | 1.9 | 1.8 | 1.8 | 14.9 |
| 西部城市(4个) | 7.3 | 4.5 | 3.
A. 2000元
B. 2500元
C. 3400元
D. 4200元
[判断题]在使用电气工具工作中,因故离开工作场所或暂时停止工作以及遇到临时停电时,应关闭电气工具开关。
A.正确
B.错误
[单选题]由于()的不同，人们在特定的职业活动中形成了各自特殊的职业活动范围与方式。
A.职业
B.性格
C.行为
D.工种
[多选题]库门前、平交道口应一度停车，执行手比口呼制度。库内动车时以不超过 km/h的速度运行，待列车尾部驶出库门后限速 km/h运行。
A.5
B.10
C.25
D.35
[单项选择]下列表达式中值为-6的是
A. Fix(-5.678)
B. Int(-5.678)
C. Fix(-5.678+0.5)
D. Int(-5.678-0.5)
[单选题]已知油的密度p为850kg/m3，在露天油池油面下5m处相对压强为( )。
A.425P
A.
B.425kP
A.
A.4168P
B.
C.4165kP
D.
[单项选择]
| There are two general ways in which the
term "market" is used in economics. First, a market is thought of as a formal or
informal organization of buyers and sellers who conduct trades in particular
commodities or services. The market may be located at a geographical meeting
place, such as your friendly neighborhood bookstore or shopping center (a retail
market). A market may be organized over wide areas connected through phones or
computer terminals. Although the trading room of the New York Stock Exchange is
located in New York City, buyers and sellers who actively participate in this
market may conduct their trades from distant locations. This description is the
institutional way of looking at a market. The second meaning of
the word "market" is used in formal economic models. Here the equations that
explain the demand and supply of a commodity such as money are sometimes grouped
together. Although money is traded in all markets, the reasons for supplying and
holding money are thought to be specific enough to warrant separate equations.
This is an abstract way to think of the money market. New
financial assets are traded in primary markets. Financial assets that are resold
are traded in secondary markets. Finns that specialize in trading either new or
reissued financial assets are called primary and secondary dealers,
respectively. Both new and reissued securities are traded in many markets, such
as the U. S money market. The New York Stock Exchange, however, is a secondary
market. | If a consumer wants to sell his CDs before the maturity date, he would do it in the primary markets. A. Right. B. Wrong. C. Doesn’t say.
[填空题]无缝道岔应满足道床保持饱满，扣件保持紧固状态，达到轨下基础稳定、[]、横向无横移。
[多选题]线路计划维修验收评分标准规定：（）。
A.满分为100分
B.100-85分为优良
C.85（不含）-60分为合格
D.60分以下为失格
[多选题]根据如图所示的命令输出，下列描述中正确的是()
A.GigabitEthernet0/0/1允许VLAN1通过
B.GigabitEthernetO/0/1不允许VLAN1通过
C.如果要把 GigabitEthernetO/0/1变为Access端口，首先需要使用命令"undo port trunk allow-pass vlan all"
D.如果要把 GigabitEthernetO/0/1变为Access端口，首先需要使用命令"undo port trunk allow-pass vlan 2 to 4094"
[单项选择]地震、旱灾、涝灾……在重大灾害面前，中华民族显示出强大的凝聚力。中华民族历经磨难而不倒、饱经风霜而弥坚，靠的就是伟大的民族精神。对中华民族精神的认识错误的是（）
A. 中华民族精神是支撑中华民族生存、发展的精神支柱
B. 中华民族精神是表明综合国力强弱的至关重要因素
C. 中华民族精神是民族综合素质的集中体现
D. 必须坚持“取其精华、去其糟粕”，批判继承，古为今用
[判断题]入侵报警系统应能对未经授权人员的进入进行实时探测，并应发出声光报警信息。（ ）
A.正确
B.错误
[单选题]选用换热器时,在管壁与壳壁温度相差( )度时考虑需要进行热补偿。
A. 20℃
B.50℃
C.80℃
D.100℃
[判断题]采用新型材料是车体结构的轻量化方法之一。
A.正确
B.错误
[多项选择]劳动消耗定额的表现形式包括( )。
A. 完成一定的合格产品所消耗的活劳动数量
B. 时间定额
C. 消耗单位的活劳动数量可以完成的合格产品数量
D. 产量定额
E. 完成一定的合格产品所消耗的工人数量
[单选题] 证券发行一般包括证券创设、资金募集和证券交付三个环节。证券无纸化发行初始登记不发行实物证券,而是直接通过证券公司的证券簿记系统进行( )
A. 资金的募集和证券的登记
B. 发行初始登记
C. 证券制作
D. 证券签章
[单选题]我国生产的适用于紫铜气焊及氩弧焊的焊丝，常用的牌号为(___)。
A.HSl01
B.HS201
C.HS301
D.HS401
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