热门试题:
[填空题]调幅的就是用调制()载波信号,使载波的振幅随调制信号的大小变化而变化。
[单选题]〔单选题)一般照明线路中,无电的依据是0
A.用摇表测量
B.用电笔验电
C.用电流表测量
[单项选择]通过计算机网络,将计算机辅助设计、计算机辅助规划以及计算机辅助制造,统一连接成一个大系统称为()
A. 顺序控制系统
B. 计算机集成制造系统
C. 柔性制造系统
D. 伺服系统
[单项选择]相同或类似货物的时间要素中的“同时或大约同时”指进口货物接受申报之日的前后各 ______ 天以内。
A. 30
B. 45
C. 60
D. 90
[单项选择]为了预防重大工业事故的发生,( ),必须建立有效的重大危险源控制系统。
A. 改善工作环境
B. 降低事故造成的损失
C. 提高经济收益
D. 保证本质安全
[单选题]电流表和电压表是最常用的电工仪表,分别用来测量( )和( )。
A.电流 电压
B.电压 电流
C.电子 电流
D.电压 电子
[多选题]配电站的变压器室内营销作业工作,电压等级为35kV与±660kV时,人体与高压设备带电部分应分别保持()m安全距离。
A.0.9
B.10
C.1
D.9
[填空题]122.PDZ系列(康达)智能电源屏的两路电源均设有过欠压保护器,以实现对两路电源()的监控。
[判断题]高速铁路线路坡度超过12‰,长度为3 km及以上,即可认定为长大下坡道。( )
A.正确
B.错误
[判断题]灭火防护服使用年限一般为15年。( )
A.正确
B.错误
[多项选择]创业风险来源于()
A. 管理风险
B. 市场风险
C. 技术风险
D. 资金风险
E. 人力资源风险
[单选题]采煤工作面上、下安全出口与巷道连接处( )m及超前压力影响范围内,必须加强支护。
A.20
B.15
C.10
[单项选择]A major breakthrough was announced in the computing world yesterday as a new type of processor was released by the computing firm Smart Designs, Inc. According to Smart Designs, the new processor uses special technology to massively decrease the size of its components, allowing the power of as many as 100 top-of-the-line processors to fit into the space of one. While details of the new technology have not been released yet, a demonstration of a computer using the new processor was made yesterday at Compucon, an annual New York computer convention.
Founded by entrepreneur Jamie Smart in 1987, Smart Designs originally manufactured a range of computer products before focusing on their processor designs in the late 90s. It was announced that Smart, now CEO, will give a press conference later this week to describe plans for the production and sale of the new computer component, as well as more details of the advanced technology it relies on. However, analysts are already forecasting a
A. At a New York computer company
B. At a technology convention
C. At a welcoming party
D. At a meeting of shareholders
[判断题]用板牙在圆杆上切削出外螺纹称为攻丝。
A.正确
B.错误
[单选题]信用证业务的特点不包括( )。
A.银行在信用证业务中提供多种融资、咨询服务
B.开证行负首要付款责任
C.信用证业务处理的是单据,而不是与单据有关的货物、服务或其他行为
D.信用证是一种无条件的支付承诺
[单选题]16.诊断精神分裂症特征性依据是
A.幻觉突出
B.无自知力
C.思维情感不协调
D.行为异常
E.妄想
[单选题]婴幼儿轻度营养不良时,体重低于正常均值
A.5%~10%
B.10%~15%
C.15%~20%
D.15%~25%
E.25%~40%
[单选题]被组织系统获取的一系列事件或交易描述的文本是 ( )___:
A.信息
B.数据
C.智慧
D.知识
E.经验
[单选题]中共十六大报告指出,一个民族进步的灵魂,一个国家兴旺发达的不竭动力,一个政党永葆生机的源泉是______。( )
A.创新
B.改革
C.革命
D.发展
[判断题]"总公司已签订易收宝服务协议,子公司则无需另行签订
A.正确
B.错误
[单项选择]离心泵产生气蚀的危害会使()。
A. 离心泵性能下降
B. 叶轮和泵壳受损
C. 产生振动和噪音
D. 三者都是
[多选题]用钻爆法开挖软弱围岩隧道,稳定掌子面的方法包括( )。
A.径向注浆
B.超前支护
C.预留核心土
D.正面喷射混凝土
E.底部注浆
[判断题]室外SF6断路器绝缘介质逸出检查时,应从上风侧接近断路器进行检查。
A.正确
B.错误
[单选题]关于支付密码使用,下列说法错误的是( )。
A.存款人申请使用电子支付密码后,提交银行的票据或结算凭证不需要加盖预留印鉴
B.出票人签发支付密码错误的支票,营业机构应予退票,并按退票有关规定进行处理
C.存款人申请使用电子支付密码时,必须与营业机构签订《使用电子支付密码协议书》
D.使用支付密码账户的支取方式为“支付密码”
[单选题]起落架系统包含哪些子系统( )which subsystem includes the landing gear system ?
A.起落架和舱门
The landing gear and door
B.起落架/舱门收放系统、刹车系统和转弯系统
The landing gear system / doors EXTENSION/RETRACTION system, brakes and steering system
C.A+B
[填空题]在正常情况下,间接喉镜下喉咽及喉部的结构是两侧对称的,可见梨状窝粘膜为________色,两侧声带为________色。
[判断题]绝缘工具电气试验标准的制定不必考虑内部过电压的影响。
A.正确
B.错误
[多选题]信贷管理系统中公司类风险分类人工调整,支持( )调整方式。
A.A、按户
B.按合同
C.按管户经理
D.按借据
[判断题]向缓冲溶液中加入酸或碱,溶液的PH值不发生变化。
A.正确
B.错误
[单选题]整修或增设桥隧建筑物其他标志的修理作业,要求()、式样符合要求,尺寸字样准确,标志清晰。
A.材料
B.位置
C.重量
D.体积
[单项选择]Help Your Child Become a Reader
Encouraging early reading skills Call build a path to a lifelong(终身的)love of reading and can help your child get a head start in school.While reading to your child is still the most important thing you can do to build reading skills,there are many techniques that Can help.
Make reading fun.Play games with your child as you read.Many traditional children’s games can be adapted to encourage reading ski11s. ‘
While reading or during play, tell your child,“I spy with my little eye,something that begins with the letter b.”Help the child find something on the page or in the room that begins with that letter.For example。‘I see a barn.”This can also be used to teach beginning letter sounds.“I spy with my little eye.Something that begins with the sounds.”Help the child find a word that begins with the “s” sound.In this variation on the popular game, instruct the child that,“Simon says,‘point to something that starts with the letter n.’”The child
A. Right
B. Wrong
C. Not mentioned
[判断题] AA005 铝及铝合金制容器组装时,可以使用铁锤进行敲打。 ( )
A.正确
B.错误
[判断题]机动起重机用的焊接链条其安全系数不得小于2。( )
A.正确
B.错误
[多项选择]下列哪些情况说明脊髓休克已结束()
A. 球海绵体反射阳性
B. 肛门指诊时可触及括约肌收缩
C. 损伤水平以下出现任何感觉
D. 损伤水平以下肌张力升高
E. 痉挛
[单选题]各类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()。
A.事故紧急处理措施
B.紧急救护措施
C.应急预案
D.逃生方法