热门试题:
[单项选择]In the dark night of the desert, a group of US Air Force scientists is testing a new device for a missile to target. Designed to seek out the heat of an enemy aircraft engine, it is now going through its paces by tracing the movement of a flashlight waving thirty feet away in the darkness. A hundred yards away, unseen by the man, a rattlesnake sliding between the stones senses a patch of warmth. Although the snake’s mechanism is small enough to be packed into a head the size of a nut, it can detect a change in temperature of one-thousandth of a degree. With a sound the snake closes in and strikes for the kill.
Whenever we look in the animal world we find the same story. Almost anything that man can do, nature has already done better. So, it is for the purpose of learning from nature that a new science called bionics has grown up. Its aim is to find out how animal’s instruments work so that man can copy them for his own purpose.
Imagine being able to know a friend several mile
A. explain how animal devices work.
B. copy animal processes with man-made machines.
C. prove the usefulness of this science.
D. apply science to the study of animals.
[单选题]用户侧设备检修,在电网侧设备停电措施实施后,由电网侧设备的运维管理单位或调度控制中心负责向()许可。
A.用户负责人
B.用户技术部门人员
C.用户电工
D.用户停送电联系人
[判断题]2.53 驾驶机动车驶入隧道前,为防止进入后暗适应过程中与前车发生事故,应降低行驶速度,与前车保持充足的安全距离。
A.正确
B.错误
[多选题]多选题:一号线EST3报警主机显示操作面板的操作包括( )。
A.查看火警信息
B.查看故障信息
C.查看监管信息
D.查看其它事件信息
[多选题] 根据党的十五大确定的任务,从1998年11月开始,全党在县级以上党政领导班子、领导干部中集中时间,分期分批开展以( )为主要内容的党性党风教育。
A.讲政治
B.讲学习
C.讲奉献
D.讲正气
[多选题]硬母线引下线的尺寸的确定方法有()
A.制做样板的施工方法
B.模拟仿真的方法
C.理论计算的方法
D.用吊中线,量尺寸,弹实样的方法
[单项选择]足少阳胆经悬钟穴位于()。
A. 外踝下缘中点上3寸,腓骨后缘
B. 外踝前缘中点上3寸,腓骨后缘
C. 外踝后缘中点上3寸,腓骨后缘
D. 外踝高点上3寸,腓骨后缘
E. 外踝高点上3寸,腓骨前缘
[单项选择]()对工程建设项目施工招标投标过程中发生的违法行为有权进行投诉或举报。
A. 评委
B. 任何单位
C. 任何个人
D. 投标人和其他有关利害关系人
[单项选择]球面下心盘段修时球面局部剥离()不大于2mm,且1处面积不大于200mm2或多处面积之和不大于总面积的20%时,须消除棱角。
A. 深浅
B. 深长
C. 深透
D. 深度
[多项选择]含有菊糖的药材是
A. 桔梗
B. 地黄
C. 大黄
D. 丹参
E. 党参
[单项选择]
随着转基因技术的发展和转基因农作物的推广,转基因农产品走入人们的生活,关于转基因的激烈争议也随之而来,围绕转基因“是否会威胁食物安全、生态安全和知识产权安全”几大焦点,双方的争论言辞激烈却都缺乏相应的令人信服的实验证据。下列对材料的认识正确的是()
①受主客观条件的制约,人们对同一对象的主观认识总是对立的
②认识具有反复性和无限性,追求真理是一个永无止境的过程
③人们应该注重研究,在实践中检验和发展认识
④只有被实践证明其正确性的认识才能对事物发展起推动作用,得到人们的一致认同
A. ①②
B. ②③
C. ①④
D. ③④
[多项选择]接触线磨耗和损伤后不能满足(),则应更换。
A. 规定的机械强度安全系数
B. 该线通过的最大电流
C. 磨损小于标称截面的20%
D. 剩余厚度大于10.95mm
[简答题]试题五(共 15 分)阅读以下说明和 Java 程序,填补代码中的空缺,将解答填入答题纸的对应栏内。【说明】以下 Jave 代码实现一个简单客户关系管理系统(CrM) 中通过工厂 (Customerrfactory )对象来创建客户(Customer) 对象的功能。客户分为创建成功的客户 (realCustomer) 和空客户(NullCustomer) 。空客户对象是当不满足特定条件时创建或获取的对象。类间关系如图 5-1 所示。【Java 代码】Abstract class Customer﹛Protected String name;()boolean isNil()()String getName();﹜ Class realCustomer ()Customer﹛Public realCustomer(String name )﹛ return false; ﹜﹜ Class NullCustomer()Customer﹛Public String getName()﹛ return ″Not Available in Customer Database″; ﹜Public boolean isNil()﹛ return true; ﹜﹜ class Customerfactory {public String[] names = {"rob","Joe","Julie"};public Customer getCustomer(String name) {for (int i = 0; i < names.length;i++) {if (names[i].())﹛return new realCusωmer(name);﹜﹜return ()﹜﹜ Public class CrM﹛Public viod get Customer()﹛Customerfactory()Customer customer1-cf.getCustomer(″rob″);Customer customer2=cf.getCustomer(″rob″);Customer customer3= cf.getCustomer(″Julie″);Customer customer4= cf.getCustomer(″Laura″);System.out.println(″customer1.getName());System.out.println(″customer2getName());System.out.println(″customer3.getName());System.out.println(″customer4.getName());﹜ Public static viod main (String[]arge)﹛CrM crm =new CrM();Crm,getCustomer();﹜﹜/*程序输出为:CustomerrobNot Available in Customer DatabaseJulieNot Available in Customer Datable*/int main()﹛CrM*crs=newCrM();Crs->getCustomer();Crs->getCustomer();Delete crs;return();﹜/*程序输出为:CustomerrobNot Available ini Customer DatabaseJulieNot Available in Customer Database
[判断题]家庭教育修养不包括家庭教育者的知识。
A.正确
B.错误
[判断题]双极氨压缩机制冷系统开机时,可同时开启高压机和低压机。
[多项选择]施工合同示范文本规定,属于承包人应当完成的工作有( )。
A. 办理施工所需的证件
B. 提供和维修非夜间施工使用的照明设备
C. 按规定办理施工噪声有关手续
D. 保证施工场地清洁符合环境卫生管理的有关规定
E. 负责已完成工程的成品保护
[填空题]To Save Trees, Fighting One Alien Insect with Others
Rusty Rhea sighs wistfully as he talks about the beauty and peace of standing amid a grove (小树林) of deep green hemlocks in Appalachia, some of them up to 160 feet (50 meters) tall and more than 500 years old.
"This is a very special tree," said Rhea, an entomologist for the U.S. Forest Service’s Forest Health Protection program in Asheville, North Carolina. "I was brought up here, and I don’t want to see another species go by the wayside."
The evergreen trees, a hallmark of southern Appalachia’s national parks, are under attack by an invasive insect barely visible to the eye but potent enough to fell the giants of the eastern United States’ old-growth forests.
Already the tiny bug from Japan, known as the hemlock woolly adelgid (HWA), has killed upward of 95 percent of the hemlocks in Virginia’s Shenandoah National Park. Now they are making their way through the half-million-plus-acre (200,000-plus-
[判断题]巷道坡度越大,支护的迎山角应当越大。( )
A.正确
B.错误
[判断题] 根据部门职责, 个人外汇产品不属于国际业务部管理。
A.正确
B.错误
[单项选择]对专营店保修业务的裁定,具有最终决定权的是()
A. 客户
B. 专营店
C. DYK
D. 第三方
[单选题] 味咸的药物能治疗:
A. 湿热喘咳
B. 胸腹胀满
C. 发热身痛
D. 瘰疬痰核
E. 小便不利
[判断题]熄灯巡视指夜间熄灯开展的巡视,重点检查设备有无电晕、断股,接头有无过热现象。
A.正确
B.错误
[单选题](单选题).( )年,美国人埃德温·赫伯特·兰德发明了拍立得相机。
A.1947
B.1974
C.1847
D.1874
[判断题]直埋电缆沿线及其接头处应有明显的方向标志或牢固的标桩。( )
A.正确
B.错误
[判断题]起重搬运时只能由一人统一指挥,禁止设置中间指挥人员传递信号。
A.正确
B.错误
[单选题]汽轮机正常运行中,凝汽器真空( )凝结水泵入口的真空。
A.大于;
B.等于;
C.小于;
D.略小于。
[单选题]团队凝聚力的内容不包括( )。
A.团队成员对团队的向心力
B.团队对其成员的吸引力
C.团队成员之间的相互作用和相互信任的氛围
D.团队与团队之间的友好合作
[判断题]客户变、配电站的工作许可人应是供电企业批准的高压电气工作人员
A.正确
B.错误
[单选题]在220kV线路带电情况下,砍剪靠近线路的树木时,人员、树木、绳索应与导线保持()m的安全距离。
A.A.5.0
B.B.4.0
C.C.3.0
D.D.2.5
[填空题] Laziness is a sin, everyone knows that. We have probably all had lectures pointing out that laziness is (36)_________, that it is wasteful, and that lazy people will never amount to(有所成就) anything in life. But laziness can be harmful than that, and it is often caused by more (37)_________reasons than the simple wish to avoid work. Some people who appear to be lazy are (38)_________ from more serious problems. They may be so (39)_________of their fellow workers that they are unable to join in any group task for fear of ridicule or fear of having their ideas (40)_________. These people who seem lazy may be paralyzed by a fear of failure that prevents fruitful work. Or other sorts of fantasies may prevent work; some people are so busy planning, sometimes planning great deals or fantastic (41)_________, that they are unable to deal with; strictly speaking, they are (42)_________procrastinating-rescheduling their day.
Laziness can (43)_________be helpful. Like procrastinators(
[单项选择]所谓“鼓励”技术是指( )。
A. 丸对求助者的叙述内容予以肯定,鼓励其继续说下去的技术。
B. 对求助者开放自己的心灵,向咨询员敞开自己的内心世界的行为予以肯定,鼓励其进一步表达的技术
C. 咨询员直接地重复求助者的话语或仅以某些词语来强化求助者叙述的内容,并鼓励其进一步讲下去的技术
D. 通过尊重、温暖、关注等方法,使求助者获得心灵上的慰藉,从而解决其心理问题的技术
[判断题]装设电抗器的目的是:增大短路阻抗,限制短路电流,减小电压波动。
[单选题]工作时间内按本级公安机关规定着装,非工作需要不准着装出入( )及娱乐场所
A.饭店
B.酒店
C.宾馆、酒楼
[多选题]进入手术室进行术前机器测试的表述正确的是?
A.通电后主机能够获得正常图像,画面无闪烁
B.可通过摄像头进行对焦、变焦、白平衡
C.光源连接导光束后,发出光亮刺眼,无法直视
D.气腹机连接气源在不接气腹管的情况下,按开始供气按钮后可以感受到气流
E.主机连接U盘后摄像头可以进行拍照、录像操作
[单项选择]在由多个通道组成的I/O系统中,I/O系统的最大流量是()
A. 各通道最大流量的最大值
B. 各通道最大流量之和
C. 各通道实际流量的最大值
D. 各通道实际流量之和
[判断题]电力电缆沟(槽)开挖时,应将路面铺设材料和泥土分别堆置,堆置处和沟槽之间应保留通道供施工人员正常行走
A.正确
B.错误