热门试题:
[单选题]在产品设计中,一般都先画出机器或部件的( )。
A.装配图
B.零件图
C.竺视图
D.剖视图
[单项选择]民用建筑工:程室内环境中甲醛、苯、氨、总挥发性有机化合物(TVOC)浓度检测时,对采用集中空调的民用建筑工程,应在空调正常运转的条件下进行;对采用自然通风的民用建筑于程,检测应在对外门窗关闭()h后进行。
A. 1
B. 1.5
C. 2
D. 2.5
[多选题]作业人员应被告知其作业现场和工作岗位存在的危险因素、防范措施及事故紧急处理措施。作业前,设备运维管理单位应告知( )。
A.电气设备知识
B.现场电气设备接线情况
C.危险点
D.安全注意事项
[单项选择]患者,女,40岁,右上腹阵发性绞痛半个月并向右肩胛部放射,B超胆囊大小正常,胆汁回声正常,胆总管轻度扩张,下端见直径0.6cm结石一枚,胰腺未见异常。首次治疗可首选()
A. 排石疗法
B. 溶石疗法
C. 碎石疗法
D. 取石疗法
E. 外科手术
[单选题]列车进站前,股道不明禁止臆测输入股道号;进入股道时应核对( ),发现不一致立即纠正,防止LKJ不控。
A.实际停车股道
B.LKJ距离信息
C.LKJ限速值
[单选题]当股四头肌麻痹时,主要不能( )
A.伸大腿
B.内收大腿
C.伸小腿
D.屈小腿
E.屈大腿
[单项选择]黑素细胞可产生以下哪种黑素()。
A. 棕黑素
B. 黄黑素
C. 褐黑素
D. 深黑素
[单选题]扣件式钢管模板支架的高度超过20m时,应在最顶()水平杆中间沿纵、横方向分 别增加一道()。
A.两步距,水平杆
B.一步距,水平杆
C.两步距,斜撑
D.一步距,斜撑
[单项选择]疼痛的定义是
A. 疼痛是组织损伤或与潜在的组织损伤相关的一种不愉快的躯体感觉和情感经历
B. 疼痛仅仅是一种主观感觉
C. 疼痛必定伴有直接的组织损伤
D. 疼痛是仅仅是某些疾病的早期信号
E. 疼痛仅仅是感觉异常,不伴有代谢、内分泌、呼吸、循环和心理学的改变
[单项选择]患者女性,76岁。摔倒时右手撑地,腕部疼痛、肿胀。查体:右腕部呈“枪刺刀”畸形。最可能的诊断是()
A. Colles骨折
B. Monteggia骨折
C. Smith骨折
D. Galeazzi骨折
E. Chance骨折
[单选题]当塔机吊钩位于最低位置时,起升卷扬机卷筒上应至少保留( )圈安全圈。
A.5
B.4
C.3
D.2
[单选题]关于盗版软件,下列说法正确的是( )
A.对于盗版软件,只要只使用,不做商业盈利,其使用并不违法
B.拷贝.使用网上的应用软件都是违法的
C.对防病毒软件,可以使用盗版软件
D.不管何种情况,使用盗版软件都不合法
[单选题]进口到中国的某种化工材料数量激增,其中来自甲国的该种化工材料数量最多,导致中国同类材料的生产企业遭受实质损害。根据我国相关法律规定,下列哪一选项是正确的?
A.中国有关部门启动保障措施调查,应以国内有关生产者申请为条件
B.中国有关部门可仅对已经进口的甲国材料采取保障措施
C.如甲国企业同意进行价格承诺,则可避免被中国采取保障措施
D.如采取保障措施,措施针对的材料范围应当与调查范围相一致
[判断题]动车组列车在自动闭塞区间,机车信号、列车运行监控装置发生
故障时,列车运行速度不超过 20km/h。
A.正确
B.错误
[单选题]停电检修时,在一经合闸即可送电到工作地点的开关或刀闸操作把手上应悬挂 的标示牌。
A.A:禁止合闸、有人工作
B.B:严禁开启
C.C:禁止启动
[简答题]粗滤器、细滤器、核桃壳过滤器、双介质过滤器的反冲洗各靠什么进行?
[单选题]应急灯(凯雷) 单位 套 批发价( )
A.18.00
B.35.0
[单选题]两肺底部闻及细湿罗音常提示( )
A.肺炎
B.急性肺水肿
C.肺淤血
D.支气管哮喘
E.肺气肿
[单项选择]马克思主义认为,社会的()决定政治权力的分配。
A. 经济秩序
B. 阶级状况
C. 政治力量分布
D. 政治秩序
[单选题]下列不属于数据备份存储体应具备性能的是( )。
A.防磁
B.防潮
C.防水
D.防静电
[单选题]骨碎补应如何净制 ( )。
A.刮去毛
B.刷去毛
C.烫去毛
D.挖去毛
E.撞去毛
[判断题]对一般防护用品器具应设专柜保管,按班交接,按期检验,并在使用前对其保护功能进行检查。不合格的要及时更换。
A.正确
B.错误
[多项选择]甲公司是M国的一家电子商务公司。2006年甲公司收购了N国一家从事电子商务业务的乙公司,从而正式进军N国。甲公司收购乙公司涉及的发展战略的类型有()。
A. 横向一体化战略
B. 市场开发战略
C. 产品开发战略
D. 相关多元化战略
[多选题]接处警系统内的值班模块中的值班岗位处于功能是定义了值班岗位的名称.所属单位.岗位职责.是否启用.岗位顺序号的信息。可进行值班岗位的( )查询。
A.新增
B.修改
C.备选人员
D.删除
E.刷新
F.编辑
[填空题]在Unix操作系统中以“.”作为首字符的文件为隐含文件,如用户环境注册文件()
[单选题]‘年1月4日起实施的维保公司《运营突发事件应急处置总体预案》中规定,运营突发事件后续调查和评估时,初判( )由集团运营安全监察室成立事故调查组进行调查处理。
A.一般E类事故及以下突发事件
B.一般E类事故及以上事故
C.较大事故
D.重大事故
[判断题]当日发生的临时工作,可分为“临时申请”、“作业人员申请”两种形式。( )
A.正确
B.错误
[填空题]三级大客流:车站出入口、站厅、站台等任意区域出现拥堵,持续时间_________________未能缓解,且站台出现乘客滞留,连续____________不能上车,对车站正常运营组织造成一定影响的情况。
[判断题]实施液化石油气槽车堵漏人员要穿纯棉类衣服。( )
A.正确
B.错误
[填空题]基类的 [12] 不能被派生类的成员访问,基类的 [13] 在派生类中的性质和继承的性质一样,而基类的 [14] 在私有继承时在派生类中成为私有成员,在公有和私有保护继承时在派生类中仍为保护成员。
[不定项选择题]建设社会主义新农村的要求是( )
A.生产发展、生活宽裕
B.乡风文明、村容整洁
C.管理民主
D.提高农民收入
[单选题]消防救援机构在消防监督检查中发现火灾隐患,应当通知有关单位或者个人立即采取措施()。
A. 整改
B. 改正
C. 消除
D. 停用
[单选题]在民用建筑物的配电系统中,一般采用( )断路器。
A.框架式
B.电动式
C.漏电保护
[判断题]煤矿井下电缆主线芯的截面应满足供电线路过负荷的要求。
A.正确
B.错误
[单项选择]Store shelves are filling up with so-called "green" products promising to benefit the environment. A recent controversy pitting the influential magazine Consume Reports against a popular new energy-saving device shows that it can be as difficult for buyers to confirm such claims as for manufacturers to defend them. The controversy concerns the GreenPlug Electricity Saver ($29~$39 retail). Consumers snapped 500 000 in 1993, the plug’s first year on the market. Gross revenue was $10 million for the fledgling manufacturer, Green Technologies Inc. , of Boulder, Colo. The GreenPlug is supposed to prevent energy waste by appliances whose constant-speed motors operate at less than full load—as is especially true of older refrigerators. Research conducted for the space shuttle showed that such motors can be made to do the same work with less heat, noise, and power consumption just by lowering the voltage of the power supply. John and Wyck Hay, two of the founders of the Celestial Seasonings Herb Tea Company, started Green Technologies in 1990 to apply that finding to home appliances. In the United States alone, there are more than 140 million refrigerators in use, accounting for an average of 16 percent of the household electric bill. That share can run as high as 25 percent in a small apartment. Two years of research resulted in the GreenPlug. Connecting between wall socket and refrigerator, the device contains an analog computer that gives a motor full power (120 V on average) for start-up, then reduces the power to 106 V. That boosts the efficiency, but a lot of factors affect how much electricity and money are saved. Line voltage varies from home to home. Older refrigerators are the most overpowered and, thus, save the most energy with a GreenPlug. Refrigerators less than two years old are so efficient already that a GreenPlug actually makes them waste electricity. The higher the voltage, the larger the difference a GreenPlug makes. Higher power costs shorten the payback time. The population-weighted national average is 10 cents per kilowatt-hour. But some residents in Washington State pay 1.5 cents. Some in Alaska pay 416 cents. Then come highly individual household factors like the number of children of refrigerator-opening age. All in all, the GreenPlug should save the average consumer $20 a year, says Steve Ehli, director of public relations for Green Technologies. Controversy over the GreenPlug began when Bernard Deitrick, a project leader at Consumers Union, tested the device on refrigerators made in 1969, 1975, 1978 and 1992. His results appeared in an unfavorable review in the November issue of Consume Reports, drawing a barrage of challenges from Green Technologies as well as Green-Plug vendors and customers. Although the GreenPlug lowered the voyage as it was designed to do, Consume Reports questioned how quickly—if ever—electricity savings attributable to the plug would repay its cost. People would be better of buying a new, high-efficiency refrigerator, the magazine advised... Consumer Reports also said that the GreenPlug didn’t give a claimed 25 percent savings worth $50 a year. The savings on the oldest model was the best at 8.6 percent, worth $20 a year. Green Technologies responded that by November it had discontinued a pamphlet that implied that the GreenPlug could deliver a 25-percent savings. And it had never used the $50 figure. Green Technologies ordered tests of the GreenPlug on up to 2800 refrigerators through next year. Mr. Ehli says the company will not put that data in stores. Instead, potential buyers will call an 800 numbers to learn how their model of refrigerator performed. Meanwhile, there is little evidence of consumer dissatisfaction. Sales topped 45000 units last month. The return rate is less than 0.2 percent, Ehli says.The electrical saving provided by the GreenPlug is influenced by a number of factors including ______.
A. the age of the plug
B. the number of outlets in the house
C. one’s place of residence
D. the number of adults in the home