Scholars and students have always been
great travelers. The official case for "academic mobility" is now often stated
in impressive terms as a fundamental necessity for economic and social progress
in the world, and debated in the corridors of Europe; but it is certainly
nothing new. Serious students were always ready to go abroad in search of the
most stimulating teachers and the most famous academies; in search of the purest
philosophy, the most effective medicine, the likeliest road to gold. Mobility of this kind meant also mobility of ideas, their transference across frontiers, and their simultaneous impact upon many groups of people. The point of learning is to share it, whether with students or with colleagues. One presumes that only eccentrics have no interest in being credited with a startling discovery, or a new A. cut down research costs B. keep up with current developments C. spend less time traveling D. develop their ideas more quickly [单选题]下列选项( )不是可编程序控制器的抗干扰措施。
A.可靠接地 B.电源滤波 C.晶体管输出 D.光电耦合器 [单选题]医院必须对消毒、灭菌效果定期进行监测。灭菌合格率必须达到 ( )
A.80% B.85% C. 95% D.100% [判断题]作业通道立柱与扶手承受的水平推力不得超过0.75kN/m,集中荷载不得超过1.0kN。
A.正确 B.错误 [判断题]生产经营单位的从业人员有权了解其作业场所和工作岗位存在的危险因素、防范措施及事故应急措施,但无权对本单位的安全生产工作提出建议。( )
A.正确 B.错误 [单选题]在人员密集或有人员通过的地段进行杆塔上作业时,( )下方应按坠落半径设围栏或其他保护措施。
A.杆塔 B.杆上人员 C.作业点 D.横担 [单选题]货车转向架段修时,平面下心盘钢制垫板的每块厚度须不小于( )。
A.5mm B.6mm C.8mm D.10mm [单选题]收费站可视范围路段出现浓雾、大雨等恶劣天气应如何上报:()。
A.能见度、风势、现场人员、财产是否受损,现场处置措施、关闭车道 B.能见度、风势、现场人员、降雨量、财产是否受损、现场处置措施 C.能见度、风势、现场人员、现场车流、财产是否受损、现场处置措施 D.能见度、风势、现场人员、风力检测、财产是否受损、现场处置措施 [判断题]市场定位是企业在选定的目标市场上,按照消费者的评价和竞争对手的情况,把企业(产品)放入市场的适当位置。()
[单项选择]He promised he would come, but now he doesn’’t still______.
A. turn over B. turn in C. turn up D. turn on [填空题]
{{B}}
The Sky’s Limit
Air travel is a rapidly growing source of greenhouse gases. But it is also an indispensable way of travel. The new A380{{/B}} The double-decker A380, the biggest airliner the world has seen, landed at Heathrow last month to test whether London’s main airport could handle the new 550-seater, due to enter commercial service at the end of this year. It was a proud moment for Britain’s Rolls-Royce, the makers of the aircraft’s Trent 900 engines. Rolls-Royce says the four Trents on the A380 are as clean and efficient as any jet engine, and produce "as much power as 3,500 family cars". A simple calculation shows that the equivalent of more than six cars is needed to fly each passenger. Take the calculation further: flying a fully laden A380 is, in terms of energy, like a 14km (nine-mile) queue of traffic on the road below. And that is just one aircraft. In 20 years, Airb [判断题]客运列车由正线变更为到发线接车时,必须有书面调度命令。
A.正确 B.错误 [判断题]列车在停车站安装好防护网、打开部分车门后,列车调度员根据司机的报告,向司机(救援时还包括救援司机)及沿途各站发布打开车门限速60km/h(通过邻靠高站台的线路时限速40km/h)运行的调度命令。
A.正确 B.错误 [简答题]什么是光纤的微弯曲损耗?
[单选题]视觉信号分为昼间、夜间及昼夜通用信号。在昼间遇降雾、暴风雨雪及其他情况,致使停车信号显示距离不足1 000 m,注意或减速信号显示距离不足( ),调车信号及调车手信号显示距离不足200m时,应使用夜间信号。《技规》第410条
A.100m B.200m C.300m D.400m [判断题]客户办理变更申请时,须由法定代表人(单位负责人)本人办理。
A.正确 B.错误 [单选题]低压带电作业使用的工具,在作业前必须仔细检查合格后方能使用,对于有缺陷的的带电作业工具禁止继续使用。所有()必须绝缘良好,连接牢固,转动灵活。
A.工具 B.作业工具 C.绝缘工具 D.带电作业工具 [单项选择]甲午战败李鸿章等人代表清政府和谈,地点是在()。
A. 日军军舰 B. 平壤 C. 仁川 D. 春帆楼 [单选题]下列能够与胆红素结合形成结合胆红素的是
A.葡糖醛酸 B.胆汁酸 C.尿素 D.珠蛋白 E.清蛋白 [单选题]采用间接验电判断时,至少应有()的指示发生对应变化,且所有这些确定的指示均已同时发生对应变化,才能确认该设备已无电。
A.两个非同样原理或非同源 B.三个非同样原理或非同源 C.两个非同样原理和非同源 D.三个非同样原理和非同源 E.略 F.略 [多项选择]报名淘抢购新品必须符合下列哪些条件?()
A. 报名商品须符合“新品定义” B. 报名商品须符合所报活动类型的商品基础要求 C. 报名商品须为实物商品,主营类目为整车(经销商)、新车/二手车的除外 D. 除女装/女士精品、男装、女鞋类目的淘宝商品外,报名商品须是国际、国内知名品牌(含知名淘品牌)的商品 E. 除女装/女士精品、男装、童装/婴儿装/亲子装、女士内衣/男士内衣/家居服、箱包皮具/热销女包/男包、流行男鞋、女鞋、运动鞋new、运动服/休闲服装、运动/瑜伽/健身/球迷用品、户外/登山/野营/旅行用品、运动包/户外包/配件、服饰配件/皮带/帽子/围巾、珠宝/钻石/翡翠/黄金、饰品/流行首饰/时尚饰品新、ZIPPO/瑞士军刀/眼镜类目的商品外,报名商品的历史累计销售笔数须小于10笔 [单选题]《局铁路旅客运输服务质量规范》电气化区段站停不冲洗车皮,( )攀登车顶作业。
A.不准 B.禁止 C.严禁 D.不得 [单选题]按照预期信用损失模型计算的信贷资产减值准备低于各项贷款余额的()时,应按照不低于各项贷款余额的()计提贷款减值准备。
A.1.5%,1.5% B.2.0%,2.0% C.2.5%,2.5% D.5%,5% 我来回答: 提交
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