热门试题:
[多选题]装有动力制动装置的机车在列车调速时,要采用动力制动为主、空气制动为辅、相互配合使用的方法,并应做到:()
A.电力机车给定制动励磁电流时,电流的升、降要做到平稳
B.制动电流不得超过额定值
C.动力制动与空气制动配合使用时,应将机车制动缸压力及时缓解为0
D.需要缓解时,应先缓解空气制动,再解除动力制动
E.略
[判断题]高速铁路,因救援抢险等需要,必须在非“天窗”时间内进行作业的,作业人员从邻线侧作业通道进入线路封闭设施后需短时间穿越非封锁线路时,必须设专人防护,经现场防护员与驻调度所(驻站)联络员联系,确认没有来车后,方准快速组织通过。
A.正确
B.错误
[多选题] 根据《劳动防护用品管理规定》,( )不是电工必须配备的劳动防护用品。
A. 绝缘鞋
B. 眼护具
C. 防尘口罩
D. 防静电鞋
[单项选择]男性,65岁,食欲亢进、体重增加1年。体检:身高170cm,体重85kg,腹部、臀部脂肪肥厚,下腹部及大腿上部可见淡红色紫纹。血压150/100mmHg。初步诊断为库欣综合征。
检查发现患者24h尿游离皮质醇增高,血浆皮质醇:上午8时560nmol/L,0点 681.5nmmol/L,为了明确诊断还应做哪项检查
A. CRH兴奋试验
B. ACTH兴奋试验
C. 小剂量地塞米松抑制试验
D. 大剂量地塞米松抑制试验
[单选题]软件是程序、数据及相关文档的完整集合,其中“开发、使用和维护程序所需要的图文资料”指的是( )
A.程序
B. 数 据
C. 文档
D. 以上都不是
[单选题]危险物品的生产、储存、装卸单位以及矿山、金属冶炼单位应当有()从事安全生产管理工作。
A.注册安全工程师
B.安全管理人员
C.应急救援人员
[判断题]解决现有组织结构和电子政务对流程重组的要求这一对矛盾应采用“先难后易”、“先改革机构重组流程”的策略。
[判断题]带电断、接低压导线应有人监护。
A.正确
B.错误
[多选题]国际金融组织及外国政府贷款转贷用途要求:( )。
A.贷款的使用包括项目融资、能力建设、政策咨询等多种形式
B.符合贷款方要求的投入领域和绩效目标、贷款方的资金使用政策
C.符合国家重大战略规划、优先发展和改革重点领域
D.符合政府债务管理要求
E.符合农发行信贷业务支持领域和范围
[单选题]下列关于隆嵴下间隙描述错误的是
A.CT横断解剖出现率为50%
B.后为食管
C.前为肺动脉权和右肺动脉
D.内有隆嵴下淋巴结
E.两侧为左、右侧主支气管
[单项选择]胰岛素的A、B两条肽链是由一个基因编码的。下列有关胰岛素的叙述,正确的是()
A. 胰岛素基因的两条DNA单链分别编码A、B两条肽链
B. 沸水浴加热之后,构成胰岛素的肽链充分伸展并断裂
C. 胰岛素的功能取决于氨基酸的序列,与空间结构无关
D. 核糖体合成的多肽链需经蛋白酶的作用形成胰岛素
[多选题] 以下几种制裁属于行政制裁的是( )。
A.支付违约金
B.劳动教养
C.行政处罚
D.行政处分
E.没收财产
[判断题]中国政府在巴黎和会上的外交失败,是五四运动爆发的根本原因。
A.正确
B.错误
[判断题]检查员在前台查验时发生了查控报警,应待科队值班领导到前台解屏并将员工及证件资料移交后,方能恢复验放。( )
A.正确
B.错误
[判断题]双管供风的旅客列车运行途中改为单管供风时,列车调度员给予司机口头指示。
A.正确
B.错误
[单项选择]可使运动变得省力的是()。
A. 加长阻力臂或缩短力臂
B. 加长阻力臂或力臂不变
C. 缩短阻力臂或加长力臂
D. 缩短力臂或阻力臂不变
E. 加长力臂或阻力臂不变
[单选题]防洪期间,发现边坡溜塌,洪水暴涨,轨道冲翻,路基冲决,水漫线路等危及行车安全时,除立即发出( )外,设停车手信号防护封锁线路。
A.警报信号
B.预报信号
C.停车信号
D.确报信号
[填空题]泛关系模式可能存在数据冗余、修改异常、()、()等问题。
[多项选择]在AUTOCAD中,有下列几种文档排列方式:()
A. 层叠
B. 水平平铺
C. 垂直平铺
D. 排列图标
[多选题]下列选项属于改善混凝土其他性能的外加剂的是( )。
A.加气剂
B.膨胀剂
C.着色剂
D.缓凝剂
E.引气剂
[单选题]消防车场日制度( )一次,每次不少于两小时。易
A.每日
B.每周
C.每月
D.每年
[填空题]Education is a long process that not only provides us with basic skills such as literacy and numeracy, but is also essential in shaping our future lives. From the moment we enter (47) as small children, and as we progress through primary and secondary education, we are laying the foundation for the life ahead of us. We must (48) ourselves to work hard so that we can pass exams and gain the qualifications we will need to (49) a good job. We must also acquire (50) life skills so that we can fit in and work with those around us. And of course health education helps us to understand how we can stay (51) and healthy. For most people, this process ends when they are in their mid-to-late teens. For others, however, it is the beginning of a(n) (52) of learning. After they finish school, many progress to (53) education where they will learn more useful skills such as computer literacy or basic business management. Others will enroll in a program of (54) education at a university where, with hard work, they will have the opportunity to graduate after three or four years with a well-earned degree. After that, they may work for a while before (55) to study for a higher degree—an M.A., for example, or a PhD. And if they live a long way from a college or university, they might follow a correspondence course using mail and the Internet. In fact, it is (56) due to the proliferation of computers that many people, who have not been near a school for many years, have started to study again and can proudly class themselves as mature students.
- [A] changing[I] discipline
- [B] secure[J] fit
- [C] longer [K] opting
- [D] kindergarten [L] school
- [E] higher [M] valuable
- [F] lifetime [N] heavily
- [G] deepen [O] further
- [H] largely
[单选题](617568)与普通水表不同的是,可拆卸水平螺翼式水表在计量机构与表壳间加装了( )密封,以方便拆装。(1.0分)
A.O形圈
B.卡簧
C.垫圈
D.密封圈
[判断题]全列空调列车额定负载总和不得超过发电车额定输出功率。通过电力连接线的电流量不得大于电力连接线额定容量。
A.正确
B.错误
[单项选择]ICD-9-CM-3与ICPM的区别,下列错误的是()
A. ICD-9-CM-3每年进行修订与补充,更新及时;ICPM自1978年至今未修订
B. ICD-9-CM-3是ICPM两卷书的合订本,只有一个类目表和一个字母索引表
C. ICD-9-CM-3分类结构以解剖部位为主;ICPM将所有的活组织病理检查单独列出,归人第一章
D. ICD-9-CM-3分类类目是以两位数为基础,ICPM是三位数,加上章号四位数才能与其他操作编码区分开
E. ICPM除手术外,其余各章都以手术操作方式为轴心;ICD-9-CM一3认为ICPM的分类轴心不利于临床使用,把分散的操作归到解剖部位之下
[单项选择]肾小球肾炎属于()。
A. 化脓性炎
B. 纤维素性炎
C. 肉芽肿性炎
D. 出血性炎
E. 增生性炎
[单选题]反假货币信息系统运行后,假币收缴明细数据的币种中人民币的编码为( )。
A. . 001;
B. . 002;
C. . 003;
D. . 004;
[单选题]在职业活动中,需要遵循社会道德,其职业道德规范主要体现在树立三个意识,其内容不包括
()。
A.安全意识
B.守法意识
C.守规意识
D.服务意识
[多项选择]维护和巩固纪律,必须贯彻()。
A. 马列主义
B. 毛泽东军事思想
C. 邓小平新时期军队建设思想
D. 江泽民国防和军队建设思想
E. 胡锦涛关于新形势下国防和军队建设重要论述
[单项选择]化学毒物引起机体出现某种效应的个体数量在群体中占有的比率为
A. 毒性作用
B. 效应
C. 效应—反应关系
D. 反应
E. 剂量
[单选题]干部要经常进行思想政治体检,同先辈先烈、先进典型( )。 ( )
A. “对标”
B. “扫描”
C. “透视”
D. “对照”
[填空题]焊条药皮中常用稳弧剂是()、()及其化合物。
[单项选择]By the 1820’s in the United States, when steamboats were common on western waters, these boats were mostly powered by engines built in the West (Pittsburgh, Cincinnati, or Louisville), and of a distinctive western design specially suited to western needs. The first steam engines (21) practical use in England and the United States were (22) low-pressure design. This was the type first (23) by James Watt, then manufactured by the firm of Boulton and Watt. Steam was (24) in a large, double-acting vertical cylinder, but the steam reached only a few pounds of pressure per square inch. It was low-pressure engines of this type that (25) first introduced into the United States by Robert Fulton. He (26) such a Boulton and Watt engine from England to run the Clermont. But this type of engine was ,expensive and complicated, (27) many precision-fitted moving parts.
The engine that became standard on western steamboats was of a dif
A. with
B. of
C. on
D. in
[判断题]屈光不正度数的高低与检影时影动快慢及影的颜色有关,屈光度越低影动越慢,颜色越明()
[判断题]在路口遇有交通信号灯和交通警察指挥不一致时,按照交通信号灯通行。
[单项选择]
阅读下面的短文,文中有15处空白,每处空白给出了4个选项,请根据短文的内容从4个选项中选择1个最佳答案。
{{B}}
Charter Schools{{/B}}
American public education has changed in recent years. One change is that
increasing numbers of American parents and teachers are starting independent
public schools called charter schools. In 1991, there were
{{U}} (51) {{/U}} charter schools in the United States. Today, more than
2,300 charter schools {{U}} (52) {{/U}} in 34 states and the District of
Columbia2. 575,000 students {{U}} (53) {{/U}} these schools. The students
are from 5 years {{U}} (54) {{/U}} age through 18 or older.
A charter school is created by groups of parents, teachers and community
members. It is similar {{U}} (55) {{/U}} some ways to a traditional
public school. It receives tax money to operate just as {{U}} (56) {{/U} A. of B. in C. for D. on
[单选题] 为避免施工中引发脚手架坍塌事故伤害作业人员,脚手架立即停止使用。( ) A.正确 B.错误
[多选题]紧急停车按钮拍下后,下列哪些现象是正确的( ) A.HSCB断开 B.施加紧急制动 C.客室照明变暗 D.所有车门关闭
[单选题]关于牙根的发育,错误的描述是 A.多根形成时,首先在上皮隔长出2个或3个舌形突起 B.上皮根鞘在规定的时间没有发生断裂,可形成侧枝根管 C.上皮隔的发育可形成根尖孔 D.上皮隔形状类似盘状 E.上皮根鞘对于牙根的正常发育很重要
[单选题]配电线路、设备检修,在显示屏上断路器(开关)或( )的操作处应设置“禁止合闸,有人工作!”或“禁止合闸,线路有人工作!”以及“禁止分闸!”标记。 A.接地刀闸 B.母线刀闸 C.隔离开关(刀闸) D.保护压板
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