[判断题]可靠度分配的常用方法有:等同分配法,分配因子法,数学规划法.( )
[单选题]消费者在购买某些高档商品是,可能会出现对所选的商品爱不释手,但另一方面又嫌商品的价格过高,这体现了消费者在购买过程中的哪种冲突()A. 趋避冲突B. 双趋冲突C. 双避冲突D. 单趋冲突
[单选题]二进制数10110001相对应的十进制数应是A:123B:167C:179D:177
[单选题]下列说法错误的是____.A.电子邮件是Internet提供的一项最基本的服务 B.电子邮件具有快速、高效、方便、价廉等特点C.通过电子邮件,可向世界上任何一个角落的网上用户发送信息 D.可发送的多媒体信息只有文字和图像
[问答题]简述班轮运输的主要特点
[问答题]西周“礼治”的基本原则包括
[阅读理解]Passage TwelveThe Red Cross is an international organization which cares for people who are in need of help. A man in a Paris hospital who needs blood, a woman in Mexico who was injured in an earthquake, and a family in India that lost their home in a storm may all be aided by the Red Cross.The Red Cross exists in almost every country around the globe. The world Red Cross organizations are sometimes called the Red Crescent, the Red Mogen David, the Sun, and the Red Lion. All of these agencies share a common goal of trying to help people in need.The idea of forming an organization to help the sick and wounded during a war started with Jean Henri Dunant. In 1859, he observed how people were suffering on a battlefield in Italy. He wanted to help all the wounded people regardless of which side they were fighting for. The most important result of his work was an international treaty called the Geneva Convention. It protects prisoners of war, the sick and wounded, and other citizens during a war.The American Red Cross was set up by Clara Barton in 1881. Today the Red Cross in the United States provides a number of services for the public, such as helping people in need, teaching first aid, demonstrating water safety and artificial respiration, and providing blood.216. A good title for this selection is ____. A. The International Red Cross B. Safety at Home and School C. Clara Barton and the Sun D. The American Red Cross217. The word “aided” in paragraph 1 means ______. A. reportedB. understoodC. caughtD. helped218. The author really tries to make the reader see that this organization ______. A. costs very little money B. helps any people in need C. teaches first aid if necessary D. gets into trouble219. The person who started the idea of this organization was ______. A. CrossB. Barton C. DunantD. a prisoner of war220. The American Red Cross aimed at ______. A. helping people in need B. teaching first aid, demonstrating water safety and artificial respiration C. providing blood for the sick and wounded D. all of the above
[问答题]质量为M=1.5kg的物体,用一根长为=1.25m的细绳悬挂在天花板上.今有一质量为m=10g的子弹以v0=500m/s的水平速度射穿物体,刚穿出物体时子弹的速度大小v=30m/s,设穿透时间极短.求(1)子弹刚穿出时绳中张力的大小;(2)子弹在穿透过程中所受的冲量.
[单选题]在水平荷载作用下,当用D.值法计算框架柱的抗侧移刚度时,随着梁柱节点转角的增大,( ) A.DD值法比反弯点法计算的侧移刚度高B.DD值法比反弯点法计算的侧移刚度低C.DD值法与反弯点法计算的侧移刚度相同D.以上不正确
[填空题]成本的可控性是相对于可控空间的( )而言的,因为,某一较低层次上的不可控成本可能是其较高层次上的可控成本.
[单选题]计算机病毒的传播不可以通过_______.A:软盘、硬盘B:U盘C:电子邮电D:CPU
[判断题]因为多线程提供了程序的异步执行的功能,所以在必要时还必须提供一种同步机制.同步也是一种各线程间对共享资源使用的协调.( )
[单选题]“同一台计算机,只要安装不同的软件或连接到不同的设备上,就可以完成不同的任务”是指计算机具有____.A.高速运算的能力 B.极强的通用性 C.逻辑判断能力 D.很强的记忆能力
[单选题]关于防火墙的说法,下列错误的是__________.A.防火墙既可以预防外部的非法访问,也可以预防内网对外网的非法访问 B.防火墙对大多数病毒无预防能力C.防火墙可以抵抗最新的未设置策略的攻击漏洞 D.防火墙可以阻断攻击,但不能消灭攻击源
[翻译]It normally takes a semester for a college freshman to adjust to his college life.
[单选题]世界上第一台电子数字计算机采用的主要逻辑部件是( )A 电子管 B 晶体管 C 继电器 D 光电管
[单选题]在办公室有10台计算机和一台打印机需要连网,需要购置( )块网卡. A. 11 B. 10 C. 1 D. 2
[单选题]华盛顿欧文有“美国文学之父”之称,其代表作《见闻札记》大部分内容写的是 A.美国本土故事B.英国故事C.阿拉伯故事 D.法国故事
[单选题]以下对视频设备的描述中,不正确的是____.A.用于对摄像头或者摄像机等信号进行捕捉、并以MPE.格式存储在硬盘上的视频监控卡B.用于在PC.看电视的电视卡C.压缩视频信息的视频压缩卡 D.在PC上处理视频信号的声卡
[单选题]学前儿童科学教育内容选择的首要要求是( )A. 科学性与启蒙性B. 广泛性和代表性C. 地方性和季节性D. 时代性和民族性
[填空题]在深度为7的满二叉树中,叶子结点的个数为( ).