热门试题:
[单项选择]实例教学中最重要的一个环节是()
A. 展示主题
B. 讲述授课背景
C. 实例教学描述
D. 实例教学反思
[多选题]自动扶梯的照明电路,可分为( )。
A.机舱(房)照明
B.扶手照明
C.围裙板照明
D.梳齿板照明
[单选题]身份鉴别是安全服务中的重要一环,以下关于身份鉴别叙述不正确的是( )。
A.身份鉴别是授权控制的基础
B.身份鉴别一般不用提供双向的认证
C.目前一般采用基于对称密钥加密或公开密钥加密的方法
D.数字签名机制是实现身份鉴别的重要机制
[多选题] 题目:银行业金融机构要防范从业人员与外部人员共谋利用()等骗取银行贷款。
A.空壳主体
B.存单
C.票据
D.虚假资料
E.
F.
[单选题](49063)液压起复设备是一种新型的机车车辆救援起复设备,具有( )的优点,故能灵活运用。
A.定比传动
B.能频繁的换向
C.体积小质量轻
D.能对运动方向调节
[单选题]上交友网站,为了找到知音,你应该: ()
A.以诚相待,毫无保留的公开身份和手机信息
B.要积极在社交网站上分享我的工作日常和出差行程
C.谨填写个人身份信息,照片中的敏感信息要马赛克
[判断题]消防头盔由帽壳、佩戴装置、面罩、披肩和下颏带等主要部件组成。( )
A.正确
B.错误
[单项选择]The evolution of sex ratio has produced, in most plants and animals with separate sexes, approximately equal numbers of males and females. Why should this be so Two main kinds of answers have been offered. One is couched in terms of advantage to population. It is argued that the sex ratio will evolve so as to maximize the number of meetings between individuals of the opposite sex. This is essentially a "group selection" argument. The other, and in my view correct, type of answer was first put forward by Fisher in 1930. This "genetic" argument starts from the assumption that genes can influence the relative numbers of male and female offspring produced by an individual carrying the genes. That sex ratio will be favored which maximizes the number of descendants an individual will have and hence the number of gene copies transmitted. Suppose that the population consisted mostly of females, and then an individual who produced sons only would have more grandchildren. In contrast, if the pop
A. the ability to adjust one’s behavior in light of the behaviors of others
B. the ability to obey the rules with high flexibility
C. teamwork and cooperation with others
D. the ability to keep a dynamic stability
[单选题]因事故死亡、重伤人数( )日内发生变化,导致事故等级变化的,相应改变事故等级。
A.7
B.8
C.9
[单选题]以下哪种不属于税收执法过错责任追究的形式。
A.责令作出书面检查
B.通报批评
C.取消执法资格
D.开除公职
[多选题]人工查验时应对收割机运输车辆进行拍照,拍照内容应包括但不限于( )。
A.《作业证》照片
B.收割机运输车辆车头照片
C.收割机运输车辆车尾照片
D.装载情况照片
[判断题]质量等级评定首先应进行工程划分,然后按照两级制度、逐级评定、合规定质的原则进行评定。( )
A.正确
B.错误
[判断题]出租汽车车辆应安装应急报警装置,可视情况安装车载卫星定位装置。
[单项选择]散打运动员在场上比赛的反应速度主要是(),而且是瞬间选择性反应,要么对来自对手的动作做出闪避、退让或进攻,要么中止已经开始了的进攻或防守转入其他的动作方式。此反应过程包括对移动目标的预料性反应和快速选择最适宜的相应动作的反应。
A. 简单反应速度
B. 复杂反应速度
C. 单一反应速度
D. 综合反应速度
[单选题]在机器中,既承受弯矩又传递转矩的轴是(____)。
A.心轴
B.转轴
C.挠性轴
D.传动轴
[单项选择]三相四线制的零线截面按相线的截面额定载流量的()选择。
A. 25%
B. 50%
C. 100%
D. 125%
[判断题]210571.低压直接接入式的电能表,单相最大电流容量为100A。( )
A.正确
B.错误
[单项选择]Passage One
For decades, heart disease has had the honor of being the leading killer of Americans. Most heartrelated deaths happen among the elderly. But a new study finds that an alarming portion of heart failure cases are occurring in a much younger group, especially among African Americans.
In the first large-scale study to document the extent of the race gap in heart disease, researchers report that one in 100 black adults develop heart failure in their 30s and 40s-a rate 20 times higher than that of similarly aged white adults. "What these data point out is that it’s important to recognize that disease patterns differ in different populations," says Dr. Kirsten. "We would have completely missed this at-risk group had we only been looking at older age groups."
The new report is a large government-funded survey. The aim of the study was to document the frequency of heart disease among young adults, so researchers recruited more than 5,000 volunteers a
A. heart disease is no longer the leading killer of Americans
B. heart disease can be well controlled at a younger age
C. chances of developing heart disease are equal among the young and the elderly
D. African Americans are more likely to develop heart disease at a younger age
[多选题]左心室有( )
A.室上嵴
B.二尖瓣
C.主动脉瓣
D.肺动脉瓣
E.梳状肌
[单项选择]设有一个关系:DEPT(DNO,DNAME),如果要找出倒数第3个字母为W,并且至少包含4个字母的DNAME,则查询条件子句应写成WHERE DNAME LIKE
[单选题]网侧出现短路时,通过网侧过流继电器101KC,使主断路器4QF动作;整定值( )。
A.320A
B.200A
C.150A
[判断题]CRH2A动车组车体结构采用中空型材(双壳)结构,使用大型中空宽幅铝合金挤压型材焊接组装。( )
A.正确
B.错误
[单选题]瑞典卡罗琳医学院 10 月 5 日宣布,将 2015 年诺尔生理学或医学奖授予中国药学家屠呦呦以及爱尔兰科学家威廉·坎贝尔和日本科学家大村智。其中,屠呦呦的获奖理由是()
A.发现治疗蛔虫寄生虫新疗法
B.发现构成大脑定位系统的细胞
C.发现幽门螺杆菌及其在胃炎和胃溃疡中所起的作用
D.发现治疗疟疾的新疗法
[判断题]当司机被劫持时,尽量将歹徒引离开驾驶室较远的地方;当被迫驾驶时,如在站则人为设置故障导致不能动车。
A.正确
B.错误
[判断题]增益不是高频小信号放大器的主要性能指标
A.正确
B.错误
[单项选择]男,47岁,因肝硬化(失代偿期)入院。2小时前出现明显呼吸困难,查体:体温正常,双肺呼吸音清,血气分析示低氧血症。抗感染治疗无效。最可能发生的并发症是()
A. 肺炎
B. 肝肾综合征
C. 肝肺综合征
D. 支气管哮喘
E. 急性左心衰
[单项选择]下列哪项等于每分通气量和肺泡通气量之差()
A. 潮气量×呼吸频率
B. 每小时通气量
C. 残气量×呼吸频率
D. 无效腔气量×呼吸频率
E. 功能残气量×呼吸频率
[单项选择]
If y is a two—digit number with tens digit t and units digit M and the table above is a multiplication table for t and u (for example,t×u=6),then y
2=
A. a+2b+10c
B. 10a+20b+x
C. 10(a+2b+c.
D. 100(a+26+c.
E. 100a+20b+c
[单选题]异步传递模式ATM采用称为信元的( )分组,并使用( )信道传输。
A.定长,光纤
B.定长,双绞线
C.变长,双绞线
D.变长,光纤
[单选题] 19世纪70年代以后,中国出现了早期维新思想。这一思潮的核心主张是( )
A. 不仅要学习西方的科学技术,同时也要采纳西方的政治、经济学说
B. 中学为体,西学为用
C. 用革命的手段推翻封建统治
D. 扶清灭洋
[判断题]1551接地变压器的绕组相电压中无三次谐波分量。( )
A.正确
B.错误
[判断题]商业承兑汇票既可以由付款人签发,也可以由收款人签发。
[单选题](A320NEO)当AP/FD TCAS方式接通时,以下说法错误的是:
A.AP保持接通
B.FD方式无变化
C.FMA上显示绿色TCAS
[判断题]筛分的作用主要是筛出生球中的粉末。( )
A.正确
B.错误
[单项选择]Internet提供的最简便、快捷的通信服务称为______。
A. 文件传输(FTP)
B. 远程登录(Telnet)
C. 电子邮件(E-mail)
D. 万维网(WWW)
[单选题]转向架的液压减震器实质上是一个密封的,充满油液的()。
A.液压油缸
B.液压油管
C.液压阀
D.液压泵