热门试题:
[单项选择]提高DWDM/OTN网络OSNR的方式不包括（）
A. 降低系统OLA站点，改造为OTM站点
B. 使用DRA
C. 适当提高发送端功率
D. 适当降低发送端功率
[单选题]386.(83604)抽油机减速箱一般采用( )变速。(1.0分)
A.二轴一级
B.二轴二级
C.三轴二级
D.三轴三级
[多项选择]下列情形中纳税人可以自缴纳税款之日起1年内向海关申请退税的有( )。
A. 因海关误征，多纳税款的
B. 海关核准免验进口的货物，在完税后，发现有短缺情况，经海关审查认可的
C. 已征出口关税的货物，因故未装运出口，申报退关，经海关查验属实的
D. 已征进口关税的货物，因纳税人申请缓纳的
[判断题] 根据房态，空房的清扫应该采用简单清扫（ ）。
A.正确
B.错误
[单选题]综合能源服务商业模式BT模式是指（ ）的简称
A..设计-建设
B..设计-移交
C..设计-总包
D..建设-移交
[单项选择]在监测阶段我国丝虫病血检微丝蚴的采血方法统一规定为
A. 60μl，双片法或每人查2张血片，每片3大滴血(60μl/片)
B. 60μl，三片法
C. 120μl，三片法
D. 60μl，单片法
E. 180μl，三片法
[判断题]工作许可人确认由其负责的安全措施正确实施。
A.正确
B.错误
[单选题]主保温层所采用的保温材料密度一般不超过( )kg/m' 。
A.300
B.400
C. 500
D.600
[单选题]增量式光电编码器根据信号传输距离选型时要考虑( )。
A.输出信号类型
B.电源频率
C.环境温度
D.空间高度
[单选题]常用于外周血T细胞亚群检测的方法是
A.流式细胞术
B.MTT法
C.细胞毒试验
D.凝集反应
E.沉淀反应
[多选题]《行规》第58条：调动乘坐旅客的车辆（ ），并（ ）。
A.进行试拉
B.全部接通软管
C.充风至定压
D.进行简略试验
[单项选择]2岁以上小儿的收缩血压计算公式为
A. (年龄×2+80)mmHg
B. (年龄×2+70)mmHg
C. (年龄×3+70)mmHg
D. (年龄×5+70)mmHg
E. (年龄×5+80)mmHg
[单项选择]
Born in 1879, in Ulm, Germany, Einstein was two years old when his parents moved to Munich. There his father opened a business in electrical supplies. As a boy, Einstein did not learn to talk until later than others of his age, and in his early childhood he was not considered especially bright. But by the time he was 14 years old, he had taught himself advanced mathematics from textbooks. By them he knew what he wanted to be when he grew up. He wanted to be a physicist and &vote himself to research.
Einstein could not afford to pay for the advanced education he needed, because his family business had declined. Later, he and his family were forced to leave Munich to live in Milan, Italy, where they had relatives. As for him, the family did manage to send him to a technical school in Switzerland, and later to the Federal Institute of Technology in Zurich. In 1901, when Einstein was 22 years old, he began teaching, and in 1902, be went to work as a patent office examiner
A. When he was 2 years old.
B. When he was 14 years old.
C. When he finished his study.
D. When he became a teacher.
[单选题]过电流继电器动作值的整定,对于直流继电器应按电动机最大工作冲击( )的110%-115%进行整定。
A.电阻
B.电压
C.电流
D.电容
[判断题]《铁路旅客运输规程》中规定，乘坐普通旅客列车，每件物品外部尺寸长、宽、高之和不超过160cm。（）
A.正确
B.错误
[填空题]
There’s no doubt that the computer has enlarged man’s working capacity as well as his intellectual capacity enormously. Er … but it brings with it dangers to match the benefits. Now by this, I mean danger to physical and mental well being of the people who work at computer terminals, not the dangers to personal privacy or national or industrial security.
There’s one very alarming set of statistics, which come from a survey done in the UK on 800 pregnant women, who happened to use computer terminals for a major part of their working day. In no less than 36% of the subjects there was some severe abnormality during the pregnancy, enough to make a termination necessary. Now these figures compare significantly with a control group of pregnant women of the same age but who did not work with computer terminals. The incidence of severe abnormalities in their case was only 16%. This survey confirms similar investigations carried out in Denmark, Canada, Aus
[单选题]学校和院(系)的各项教学工作都要通过( )组织教师去完成。
A. 教务处
B. 科研处
C. 教研室
D. 教材科
[单选题]地下变电站工程施工中，挖出的土方不得堆放在孔口四周（）m范围内。
A.0.5
B.1
C.1.5
D.2
E.略
F.略
[判断题]一号线地铁列车每个客室设有4个乘客紧急报警装置，成W形分布。
[多选题]E190机型SK包内有以下哪些物品及配备数量正确的是:()()
A.压缩海绵1个
B.水着色剂2袋
C.袋装饮用水8袋
D.烧伤药膏4袋
E.三角形绷带3个
F.净水消毒药1瓶
[多选题]土石方施工采用挖掘机开挖时应遵守的规定有（）。
A.应避让作业点周围的障碍物及架空线
B.禁止人员进入挖斗内，禁止在伸臂及挖斗下面通过或逗留
C.暂停作业时，应将挖掘机熄火
D.挖掘机作业时，在同一基坑内不应有人员同时作业
[单项选择]世界上第一个抗肿瘤基因治疗药物是（）。
A. 腺苷脱氢酶ADA
[单项选择]CO2血浆溶解系数在常温下（）
A. 0.115mmol/（L·kPa）
B. 0.226mmol/（L·kPa）
C. 0.305mmol/（L·kPa）
D. 0.336mmol/（L·kPa）
E. 0.400mmol/（L·kPa）
[判断题]经海关批准，在海关监管下，存放已按规定领取了出口货物许可证或批件，已对外买断结汇并向海关办完出口海关手续的货物的专用仓库是保税仓库。
[填空题]党章规定,党的全国代表大会每( )举行一次,由中央委员会召集。
[单选题]半分开式液压动力转向系统是将( )。
A.转向器、转向动力缸、转向控制阀三者分开布置。
B.转向动力缸和转向控制阀组合制成一个整体。
C.转向器、转向动力缸、转向控制阀三者组合成一个整体。
D.以上都不正确。
[单选题]在运行中的电能表有时会反转，那么这只电能表接线一定是错误的。
A.正确
B.错误
[多选题]高压压力开关关闭值为（ ），打开值为（ ）。
A.30±1bar
B.29±1bar
C.24±1bar
D.20±1bar
[单项选择]长骨结核与化脓性骨髓炎的明显不同点是（）
A. 病变区骨膜反应轻微
B. 常破坏关节
C. 易向骨干发展
D. 弥漫性骨质破坏
E. 病变部位软组织肿胀
[判断题]对于基建大修等项目，铁路信号集中监测系统的设计实施，可以在联锁、列控、TDCS/CTC等系统验收及开通后进行
A.正确
B.错误
[多选题]煤矿“三违”具体指（ ）。
A.A、违法开采
B.B、违章指挥
C.C、违章作业
D.D、违反劳动纪律。
[单选题]检修前，应确认需停用的业务已经过相关（ ）部门的同意。
A.调度
B.上级
C.业务
D.管理
[单项选择]马克思主义哲学首要的和基本的观点是( )。
A. 物质的观点
B. 运动的观点
C. 实践的观点
D. 发展的观点
[单项选择]以下各年龄期中，发病容易，传变迅速的病理特点表现最突出的是（）。
A. 初生儿期
B. 婴儿期
C. 幼儿期
D. 学龄期
E. 青春期
[多选题]关于纤维结肠镜检查的护理措施，正确的是
A. 检查前2～3天进少渣饮食
B. 检查当日晨空腹
C. 可于检查前口服50%硫酸镁清洁肠道
D. 协助病人右侧卧位
E. 检查后进少渣饮食3天
