热门试题:
[单选题]汽化器安全阀起跳压力
A.1.1mpa
B.1mpa
C.0.8mpa
D.0.9mpa
[单项选择]
Passage Two
Some years ago industries had more freedom than they have now, and they did not need to be as careful as they must today. They did not need to worry a lot about the safety of the new products that they developed. They did not have to pay much attention to the health and safety of the people who worked for them. Often new products were dangerous for the people who used them; often conditions in the work place had very bad effects on the health of the workers.
Of course sometimes there were real disasters which attracted the attention of governments and which showed need for changes. Also scientists who were doing research into the health of workers sometimes produced information which governments could not ignore. At such times, there were inquiries into the causes of the disaster or the problems. New safety rules were often introduced as a result of these inquiries; however, the new rule; came too late to protect the people who died or who becam
A. testing new products
B. designing new products
C. controlling the sale of product
D. inspecting work places
[判断题]线路静态检查时,轨道几何尺寸以人工检查为主。
A.正确
B.错误
[判断题]任何个人和组织使用网络应当遵守宪法法律,遵守公共秩序,尊重社会公德,不得危害网络安全,不得利用网络从事危害国家安全、荣誉和利益的活动。
A.正确
B.错误
[判断题]高频电路的主要性能指标有增益、通频带、选择性、工作稳定性和噪声系数。
A.正确
B.错误
[单项选择]项目组成员中有一名专职的文件管理员,其主要职责之一是负责项目组的文件收发和保管。针对于文件收发环节,以下叙述不正确的是______。
A. 电子版文件可通过授权系统来控制收发
B. 对于纸质文件可以采用编号、盖章等方法控制文件的有效性
C. 发给客户的文件可以不进行文件回收管理
D. 对现场使用的外来文件可不进行文件收发管理
[单项选择]Passage Three
Questions 32 to 35 are based on the passage you have just heard.<.b>
A. Because it is hard to find natural resources.
B. Because it is hopeless to find natural resources.
C. Because it is poor in natural resources.
D. Because it is rich in natural resources.
[单选题](第三十七条)在结冰、油污、湿滑、坑凹不平的地面或有障碍物的区域行动时,要小心谨慎防( )。 ( )
A.触电
B.溺水
C.摔跌
D.埋压
[填空题]Top 4 Things to Do Before You Go
Travel preparations can be stressful, That’s why you should tick off these 4 things immediately.
(1) Passport and Visas
Make sure you have your passport and necessary visas. If you don’t have a passport already, make sure you apply for one 2-3 months in advance of your trip. Waiting for a visa can take up to a month in itself, so get your application in early.
(2) Main
Have a friendly neighbor collect your mail or arrange for your local post office to hold your deliveries for the duration of your stay in Eastern Europe.
(3) Contact Information
Give contact information to appropriate people. Let others know what email address they can reach you at, what hotels you may be staying in, and the duration of your stay in each location.
(4) Someone to Watch Your House
If you rent, let your landlord know how long you will be gone. If you own a house, have someone check on your place once a week.
[判断题]在电力网中,线路末端的电压一定低于线路首端的电压。( )
A.正确
B.错误
[单选题]{A}根据颗粒级配曲线,Qu<()的土为无机土。
A.15%
B.10%
C.20%
D.35%
[单选题]对于水泥混凝土道面中的水泥,实测()抗折强度宜≥8Mpa。
A.7
B.14
C.28
D.32
[单项选择]根据雷暴的形成原因可将雷暴分成()。
A. 冷涡雷暴
B. 系统性和热力性雷暴
C. 地形雷暴
D. 副高西部雷暴
[单项选择]根据现行《火灾自动报警系统设计规范》,某高层综合楼地下室为三层,当地下二层发生火灾时,消防控制室应先接通()的火灾应急广播
A. 地下二层
B. 地下一层、二层、三层
C. 地下一层、二层和首层
D. 地下一层、二层、三层和首层
[单项选择]不在教师资格认定程序之列的是( )。
A. 提出申请
B. 受理
C. 参加资格考试
D. 颁发证书
[单项选择]下列会计科旨年,用于核算事业单位固定资产报废、毁损净残值的是()。
A. “事业结余”
B. “事业基金”
C. “固定基金”
D. “专用基金”
[单选题]经互感器接入电能表的装拆、现场校验工作,应有防止电流互感器( )次侧开路、电压互感器二次侧短路和防止相间短路、相对地短路、电弧灼伤的措施。
A.一次
B.二次
C.高压
D.低压
[单选题]在易燃物品上方进行焊接,应在下方设置( )。
A.运维许可人
B.动火执行人
C.专责监护人
D.工作班成员
[单项选择]计算机网络建立的主要目的是实现计算机资源的共享,计算机资源主要指计算机 ________。
A. 软件与数据库
B. 服务器、工作站与软件
C. 硬件、软件与数据
D. 通信子网与资源子网
[单选题]符号为CP的化学纯试剂的等级为( )。
A.一级品
B.二级品
C.三级品
D.四级品
[单项选择]2003年2月,香港海茂金出口贸易公司同韩国一家公司签订进口合同,进口一批三星牌电子产品,同时又与哈萨克斯坦一家公司签订出口合同,将该批电子产品转手,2003年5月13日一韩国籍船舶载运该批三星品牌的电子产品向大连海关报关入境,入境后该货物换装上火车,并全程在我国海关的监督下通往满洲里,5月14日该货物在满洲里海关监督下顺利出境。
根据上述案例,回答下列问题。
过境货物必须在( )之内办理海关有关手续并出境。
A. 6个月经批准可延期6个月
B. 3个月经批准可延期6个月
C. 3个月经批准可延期3个月
D. 6个月经批准可延期3个月
[单项选择]属非均相液体药剂的是
A. 芳香水剂
B. 甘油剂
C. 混悬剂
D. 糖浆剂
E. 溶液剂
[单选题]主要通风机每( )年进行1次通风机性能测定。
A.1
B.3
C.5
[单项选择]根据企业破产法律制度的规定,在破产程序中,有关当事人对人民法院作出的下列裁定,可以上诉的是( )。
A. 不予受理破产申请的裁定
B. 宣告企业破产的裁定
C. 认可破产财产分配方案的裁定
D. 终结破产程序的裁定
[单项选择]设一个基因座上有两个具有显隐性遗传关系的等位基因A和a,其中A为理想的基因,再设初始群体均为杂合个体,淘汰aa基因型后,子一代基因频率p=()。
A. 25%
B. 66.7%
C. 33.3%
D. 50%
[单项选择]2004年7月1日开始施行的《证券投资基金运作管理办法》中,首次将我国的基金的类别分为()等基本类型。
A. 股票基金、债券基金、混合基金、货币市场基金
B. 股票基金、债券基金、ETF、货币市场基金
C. 平衡基金、指数基金、混合基金、股票基金
D. 债券基金、指数基金、平衡基金、ETF
[单选题]体态礼仪中站姿的基本要求是:( )
A. 头正 肩平 臂垂 躯挺 腿并
B. 头正 肩松 臂垂 躯直 两腿开立
C. 头正 肩平,两腿开立,两脚成45度夹角
D. 双手背在身后,挺胸 收腹
[多选题]标准化的特征有( )
A.简化
B.系列化
C.统一化
D.通用化
[单选题]柴油机工作时,机油滤清器前后压力差不大于( )。
A.100kPa
B.150kPa
C.180kPa
[多项选择]公司信贷风险预警的理论和方法主要包括()。
A. 评级方法
B. 统计理论
C. 统计模型
D. 专家判断法
E. 信用评分方法
[单项选择]免疫接种后首先产生的抗体是
A. IgM
B. IgG
C. IgA
D. IgD
E. IgE
[填空题]当两个不同频率的载波(其中一个为调制信号)同时加到一个( )时产生一个三阶失真 产物叫交调。
[单项选择]At that time, many readers (found) (it) difficult (believing) what Jules Verne had written in his book (to be true).
A. found
B. it
C. believing
D. to be
[不定项选择题]A.活体内单个或小团细胞的死亡
A.细胞或间质内出现半透明、均质、红染无结构物质
B.除脂肪细胞外,其他细胞出现脂滴
C.坏死组织发生酶性分解
D.结核分枝杆菌引起的坏死
E.凋亡是
[单选题]何种肥料不可用叶面施肥法( )?
A.尿素
B.绿肥
C.磷酸钾
D.硫酸铔