热门试题:
[简答题]机车司机在运行中应严格遵守哪些速度?(10.0分)
[多项选择]《关于制止钢铁行业盲目投资的若干意见》中规定,有关钢铁投资建设项目的条件正确的是 ( )。
A. 烧结机使用面积达到180m2以上
B. 焦炉炭化室高度达到4.3m及以上
C. 高炉容积达到1000m3及以上
D. 转炉容积达到100t及以上
E. 电炉容积达到60t及以上
[多选题] 民用机场是指专供民用航空器起飞、降落、滑行、停放以及进行其他活动适用的划定区域,包括附属的()、()和( )。
A.建筑物
B.装置
C.设施;
D.相关单位
[多项选择]按照我国宪法的规定,下列何种选项属于需要作出改变或者撤销决定的情形( )
A. 全国人大对全国人大常委会不适当的决定
B. 国务院对市、县、乡政府不适当的决定和命令
C. 全国人大常委会对省人大制定的同宪法、法律和行政法规相抵触的地方性法规和决议
D. 省人大常委会对省政府的不适当的决定和命令
[单选题]患者,男,24岁。1天来四肢发作性抽搐10余次,不省人事。检查:昏迷,无肢体瘫痪,双侧Babinski征阳性,仍有抽搐发作。其治疗首选药物是
A.氯丙嗪肌注
B.安定静注
C.鼻饲苯妥英钠
D.苯巴比妥肌注
E.水合氯醛灌肠
[填空题]Fzh-CTC分散自律调度集中KVM延长器在正常情况下上面的指示灯是( )的。
[单选题]我国110kV以下系统的中性点均采用( )。
A.不接地或经消弧线圈接地方式
B.直接接地方式
C.经大电抗器接地方式
D.经小电抗器接地方式
[判断题]㠋轴端装有各种不同类型的部件,各个轴端装有:轴温、LG速度传感器、ETCS速度传感器、防滑速度传感器等。
A.正确
B.错误
[判断题]行调发布进路闭塞法行车时,司机应该知道预选AM-ITC/强制BM
A.正确
B.错误
[单选题]UPS的旁路开关一般为( )型开关。
A.先断后通
B.即断即通
C.先通后断
D.通断分开
[单项选择]自动变速箱控制单元所得到的发动机负荷信号来自()。
A. 氧传感器
B. 车速传感器
C. 曲轴传感器
D. 节气门位置传感器
[单项选择]有关紧急避孕方法,不恰当的有()
A. 72小时内放置IUD
B. 已确定怀孕的妇女可采用紧急避孕药
C. 在无保护性生活后3天内口服紧急避孕药有效率可达98%
D. 米非司酮为孕激素受体拮抗药
E. 53号避孕药可作为紧急避孕药
[单项选择]某男性患者,50岁,缺失,左上7652双侧上颌结节过度增生,左上76相应牙槽嵴骨尖,左上4远中深龋,左上7远中舌尖缺损,已做完善根管充填,不松动,右上8智齿,远中阻生,牙石(+++)。修复前的准备中,哪项工作最不重要()
A. 拔除右上8
B. 治疗左上4
C. 洁治
D. 去骨尖
E. 修整上颌结节
[单选题]―年起,消防部门联合综治、民政、共青团、妇联等部门,从企事业单位、街道(居委会)、物业管理、社区保安等单位和群体中,培养、选拔、推举热心消防公益事业、有一定群众威信、责任心强的认识,担任何职,立足社区开展群众性消防安全宣传教育活动?
A.社区消防安全宣传员
B.社区消防宣传大使
C.社区消防公益使者
D.社区消防安全大使
[多选题]宪法的基本原则包括( )。
A.党的领导原则
B.人民主权原则
C.公民权利原则
D.法治原则
E.民主集中原则
[单选题]安全管理的核心内容是( )。
A.制定安全技术方案
B.建立和维持安全控制系统
C.增加安全投入
D.加强内部沟通
[单选题]综合业务应急处置程序分为().应急处置及突发事件排除后业务处理三部分。
A.稳妥启动 ;
B.应急预案 ;
C.应急启动;
D.充分准备
[多选题]公安机关根据什么构成上下级与同级的关系( )。
A.业绩
B.学历
C.行政职务
D.警衔
[单选题]《安全生产法》规定,事故调查处理应当按照科学严谨、依法依规、实事求是、注重实效的原则,及时、准确地查清事故原因,查明[ ]和责任。
A.事故类型
B.事故性质
C.事故影响
D.事故损失
[多项选择]小型船舶有下列( )行为的,由海关对小型船舶及其负责人处3万元以下罚款。
A. 船舶同船混装进出口货物与非进出口货物的
B. 向海关监管站交验的舱单不真实或者与实际载运的货物不符的
C. 未按规定到海关监管站办理海关关封和舱单确认手续的
D. 未按规定将关封带交指定海关或者擅自开启关封的
[判断题]制动梁安全链松余量须在落车后测量。 ( )
A.正确
B.错误
[判断题]短路的常见原因之一是设备长期运行,绝缘自然老化。
A.正确
B.错误
[判断题]战斗精神旺盛,要做到战斗意志高昂,发扬英勇顽强、不怕牺牲的战斗作风,刀山敢上、火海敢闯,召之即来、战之必胜。( )
A.正确
B.错误
[填空题]一般低应变法测试的目的是测试桩的(),判断桩身缺陷的()和()。
[单项选择]失语症患者言语恢复的高峰期为
A. 1~3个月
B. 1~6个月
C. 3~6个月
D. 6~12个月
E. 1~12个月
[单选题]进站、通过、接近、遮断信号机,不得小于()m。
A.900
B.1000
C.1100
D.1200
[判断题]变压器室排气扇安装位置应与中部出风口离开较远距离,并保证排气扇与进气口之间空气对流,以增加散热效果。通风量经设计校核满足变压器的要求。
A.正确
B.错误
[填空题] 半自动闭塞区段,遇超长列车头部越过出站信号机而未压上出站方面的轨道电路发车时,行车凭证为出站信号机显示的( ),并发给司机( )。
[单项选择]Scientists have discovered a powerful antibiotic in the blood stream of giant pandas that can destroy bacteria The Chinese researchers discovered the【C1】______known as cathelicidin-AM, after【C2】______the panda"s DNA. It"s thought that the antibiotic is【C3】______by the bear"s immune system in order to protect them from infections. The scientists found that cathelicidin-AM killed bacteria in less than an hour【C4】______other antibiotics took more than six hours. They now want to develop the substance as a new drug to fight superbugs. The【C5】______bears, of which there are just 1,600 in the wild, have become a symbol for conservation—and now there could be a new reason to try and protect them.【C6】______, scientists will not need to rely on the animal"s unreliable breeding ability to【C7】______the new antibiotic, as they have been able to make it artificially in the lab by decoding the genes to produce a small molecule known as a peptide. Dr Xiuwen Yan, who led the research at the Life Sciences College of Nanjing Agricultural University in China told the Daily Telegraph: "It showed potential antimicrobial activities against wide【C8】______of microorganisms including bacteria, both standard and drug-resistant【C9】______. Under the pressure of increasing microorganisms【C10】______drug resistance against conventional antibiotics, there is【C11】______need to develop new type of antimicrobial agents. Gene-encoded antibiotics play an important role in immune system against【C12】______microorganisms. They cause much less drug resistance than conventional antibiotics." Panda populations have decreased【C13】______the destruction of their natural habitat and bamboo food【C14】______in China and south east Asia.【C15】______to increase their numbers, including efforts at Edinburgh Zoo with resident pandas Tian Tian and Yang Guang, have been【C16】______for the extreme difficulty in getting them to breed in captivity.【C17】______in the wild, pandas【C18】______to breed easily, as the females only come into season once a year. It has been【C19】______that the millions of pounds spent in using expensive artificial breeding techniques could be put to better use on other conservation projects. And this new discovery is likely to【C20】______the case to save the endangered creatures.【C13】
A. with reference to
B. owing to
C. according to
D. in spite of
[单项选择]数据的独立性是指______。
A. 数据库的数据相互独立
B. DBMS和DB相互独立
C. 用户应用程序与数据库的数据相互独立
D. 用户应用程序与DBMS相互独立
[多选题]直流穿墙套管漏气、漏油及过热的现象主要包括(____)。
A.直流穿墙套管压力表计指示有明显下降,且后台一体化监控系统压力曲线也呈下降趋势
B.穿墙套管表面有油渍
C.套管局部过热
D.套管末屏接地处有放电声音、电火花
[简答题]
You probably have noticed that people express similar ideas in different ways, depending on the situations they are in. This is very natural. All languages have two general levels of usage—a formal level and an informal level. English is no exception. The difference in these two levels is the situation in which you use a particular level. Formal language is the kind of language you find in textbooks, reference books and in business letters. You would also use formal English in compositions and essays that you write in school. Informal language is used in conversation with colleagues, family members and friends, and when we write personal notes or letters to close friends.
Formal language is different from informal language in several ways. First, formal language tends to be more polite. What we may find interesting is that it usually takes more words to be polite. For example, I might say to a friend or a family member "Close the door, please." But to a st
[单选题]急性胰腺炎病情严重的重要指标是:
A. 血白细胞>15*109/L
B. 血糖超过200mg/
A.l,尿糖阳性
B.血淀粉酶>256U(温氏法)
C.血钙<1. 75mmol/L(7mg/
D.l)
E.血清脂肪酶>1. 5U
[单项选择]院内感染所致肺炎中,主要病原体是()
A. 肺炎球菌
B. 革兰阴性杆菌
C. 金黄色葡萄球菌
D. 病毒
E. 真菌