热门试题:
[单选题] 建筑火灾内攻路线的选择错误的是()。
A. 敞开楼梯间
B. 封闭楼梯间
C. 防烟楼梯间
D. 客运电梯
[单项选择]大型工程项目工作分解结构通常可以分为六级：一级为工程项目；二级为单项工程；三级为单位工程；四级为任务；五级为工作包；六级为工作或活动。用于授权的通常是( )。
A. 第五级
B. 第四级
C. 第三级
D. 第一级
[单选题]根据《生产安全事故报告和调查处理条例》,在特殊情况下,提交事故调查报告的期限经批准可延长,但不超过( )日。
A.40
B.50
C.60
[单选题]不属于红细胞异常结构的是
A.Cabot环
B.噬碱性点彩颗粒
C.Auer小体
D.变性珠蛋白小体
E.Howell-Jolly小体
[简答题]6-10千伏人体与带电体之间最小安全距离为多少？
[单选题]下列属于驱逐性、制服性警械的是（）。
A.手铐
B.警棍
C.警绳
D.脚镣
[单选题]以下哪个不是小微企业使用云计算可以带来的好处?( )
A.省下基础设施投资
B.省去底层人才投资
C.随时可用最新的资源
D.获得大量的机房管理经验
[多项选择]甲企业是一家大型IT企业，该企业将自己的客户分为教育机构、政府机构、金融机构三大类，同时又将其分为大客户、中小客户两类，则该企业进行细分时，采取的变量包括( )。
A. 消费者类型
B. 企业规模
C. 价值
D. 企业的地理位置
[单项选择]下面关于8250的叙述中，正确的是：
A. 8250中接收移位寄存器的主要任务是：将并行数据转换成串行数据
B. 8250中发送移位寄存器的主要任务是：将串行数据转换成并行数据
C. 8250是一个通用异步接收器/发送器
D. 写入8250除数寄存器的除数的计算公式为：除数＝1843 200/波特率
[多选题] 监视、测量设备的选配要求( )
A.监视、测量设备的选配要依据《监视、测量设备配备规范》进行实施
B.监视、测量设备的配备数量,应满足校准、检定及修理期间有足够的备件
C.所选配监视、测量设备的准确度及示值范围,要满足工艺参数误差(或精
度)和测量范围的要求
D.所选配监视、测量设备应具备 CMC 标志,(进口装置及计算机、软件除
外);既有先进的技术性能,满足预期使用要求,又不盲目追求高精度
[单选题]如果不通风，收获的粮食种子在（）的情况下，容易酒精发酵而腐烂
A.锈蚀
B.呼吸作用
C.老化
D.虫蛀
[判断题]凡参加高处作业的人员，应每两年进行一次体检。（）
A.正确
B.错误
[多选题]大雨、冰雹天气过后，重点检查（ ）
A.构支架基础是否存在积水情况
B.构支架基础是否存在积冰情况
C.排水孔有无堵塞
D.构支架是否变形
[判断题]承、发包工程，工作票可实行“双签发”。签发工作票时，双方工作票签发人在工作票上分别签名，各自承担相应的安全责任。
A.正确
B.错误
[填空题]清理，维护，维修设备时，必须____进行。
[单项选择]The old professor ______ oral lessons is from Australia.
A. gave us
B. gives us
C. giving us
D. given us
[单项选择]Of greatest interest to those concerned with the environmental aspects of solid waste management is the issue of—and the need for—resource recovery and recycling. To many Americans, there is perhaps no greater symbol of our imbalance with nature and our mal-adaptation to its realities than the fact that we discard millions of tons of wastes every year which do, in act, have value. The American people realize now that trash need not be mere junk. It has the potential of becoming a significant vein or resources, a mother lode of opportunity for men of vision who can see beyond the horizon.
The American people are right. And those who serve them can no longer view solid waste management solely in terms of collection and disposal. However, something more than the magic of science and technology is required to convert all this waste back into useful resources.
In fact, in proportion to consumption, resource: recovery has been steadily losing ground in recent years in virtually eve
A. Virgin Materials and Secondary Materials.
B. What is Recycling.
C. Solid Waste Management.
D. Problems of Recyclin
[单选题]肾病综合征最常见的并发症是( )
A.感染
B.循环充血
C.电解质紊乱
D.急性肾功能不全
E.高凝状态或血栓形成
[填空题]凝结器的铜管通常采用（）方法固定在（）上
[判断题]未填明实际结算金额和多余金额或实际结算金额超过出票金额的银行汇票，银行不予受理。( )
A.正确
B.错误
[单项选择]关于希-内测验，说法错误的是
A. 可以用于测验聋哑儿童智力
B. 适用于3～16岁儿童
C. 由美国内布拉斯加大学的马歇尔·希斯基编制
D. 测验分数解释上采用学习年龄和学习商数
E. 学习年龄是与同年龄全体儿童相比较而得出的
[单选题]B-E-001 3 2 3
硬质合金的特点是耐热性( ),切削效率高,但刀片强度、韧性不及工具钢,焊接刃磨工艺较差。
A.好
B.差
C.一般
D.不确定
[单选题]CRH1自动车钩下导流罩的开、关电磁阀是( )电磁阀。
A.V5
B.V6
C.V7
D.V8
[填空题]班组长应该及时.准确地向( )反映工作中的实际情况,提出自己的( )。
[单选题] 驾驶机动车行经下列哪种路段时不得超车?
A.高架路
B.交叉路口
C.环城高速
D.中心街道
[多选题]发布书面命令的内容有（ ）。
A.列车中途清客
B.线路封锁/解封
C.设置/取消线路限速
D.合并区间行车/取消合并区间行车
E.准许施工及授权检修作业
[单选题]下列物联网技术中不属于蜂窝无线接入技术是哪个
A.eMTC
B.SigFox
C.EC-GSM
D.NB-IOT
[简答题]偶像剧《转角遇到爱》中与大S搭档，饰演“秦朗”这一角色的是哪位全能台湾男艺人？
[多选题]3.625. 第625题线路缺陷分级为( )。——
A. 一般缺陷
B. 重大缺陷
C. 紧急缺陷
D. 特殊缺陷
[单选题]xxx工作记录是反应养护( )情况。
A.维修
B.大修
C.保修
D.项目开展
[判断题] ( )油罐在收油过程中，罐内压力低于油罐设计的压力会使油罐被胀裂。
A.正确
B.错误
[单项选择]
Because humans are at the top of the food chain, they are particularly vulnerable to the effects of nondegradable (不可能降解的)pollutants. This was clearly illustrated in the 1950s and 1960s when residents living near Minamata Bay, Japan, developed nervous disorders, shaking, and paralysis(瘫痪，麻痹) in a mysterious widespread. Over 400 people died before authorities discovered that a local industry had released mercury(水银，汞) into Minamata Bay. This highly toxic element stored up in the bodies of local fish and eventually in the bodies of people who consumed the fish. More recently research has revealed that many chemical pollutants are harmful to the human beings.
Pollution also has a dramatic effect on natural resources. Ecosystems such as forests, wetlands, and rivers perform many important services for the earth’s environment. They improve water and air quality, provide living places for plants and animals, and provide food and medicines. Any or all of these ecosystem fu
A. if mankind do something harmful to the environment, vice versa, the indeed victims are themselves
B. a local industry which had released mercury into Minamata Bay was the real murderer
C. how this highly toxic element stored up in the bodies of local fish and eventually harmful to the bodies of people who consumed the fish
D. the theory of pollution
[单选题]对于ZPW2000轨道电路衰耗盒的端子，J2组表示的含义是（）。
A.轨道继电器条件
B.主轨道电压调整
C.小轨道电压调整
D.报警电路
[多选题]铁路职工入疗养院疗养，应填发（ ）乘车证。
A.临时定期
B.往返软席
C.往返硬席
D.探亲
[单项选择]
In 1998 consumers could purchase virtually anything over the Internet. Books, compact discs, and even stocks were available from World Wide Web Sites that seemed to spring up almost daily. A few years earlier, some people had predicted that consumers accustomed to shopping in stores would be reluctant to buy things that they could not see or touch in person. For a growing number of time-starved consumers, however, shopping from their home computer was proving to be a convenient alternative to driving to the store.
A research estimated that in 1998 US consumers would purchase $ 7.3 billion of goods over the Internet, double the 1997 total. Finding a bargain was getting easier, owing to the rise of online auctions and Web sites that did comparison shopping on the Internet for the best deal.
For all the consumer interest, retailing in cyberspace was still a largely unprofitable business, however. Internet pioneer Amazon. com, which began selling books in 1995 and lat
A. there were more and more online auctions
B. there were more and more Internet users
C. the consumers had more money to spend
D. there were more goods available on the Internet
