热门试题:
[判断题]横波垂直入射的面,用手指沾耦合剂拍打,反射的波高也会变化。( )
A.正确
B.错误
[单选题]频敏变阻器主要用于( )控制。
A.笼形转子异步电动机的起动
B.绕线转子异步电动机的调整
C.直流电动机的起动
D.绕线转子异步电动机的起动
[单项选择]下列关于单梁式楼板的说法,正确的是()。
A. 梁支承在墙上
B. 适用于长短向比值接近的房间
C. 次梁支承在主梁上
D. 荷载由板直接传给墙,梁只起分隔作用
[单项选择]
C
根据下面短文回答下列问题。
Jenny was a very kind and beautiful woman and before she married (结婚), many men were in love with her. Many of them wrote to her, telling her how wonderful she was, how much they loved her and wanted to marry her.
Jenny kept all these letters. She tied (捆紧) them up with a red ribbon (丝带) and put them away in an old box. She never looked at them as she was happily married, however, they were a part of her life and she did not throw them away (扔掉).
Jenny had a daughter, Sue. Sue was six.
One day, Jenny had to leave Sue alone for half an hour. She told Sue to be a good girl.
When Jenny got back and asked Sue what she played, Sue told her mother that she played mailman.
"How could you play mailman," Jenny asked. "You didn’t have any letters."
"Oh, yes I did, Mommy," Sue said. "I found some in an old box. They were tied up with a red ribbon. I put one in every mailbox (信箱) in the street. /
<
A. in her bedroom
B. in different mailboxes in the street
C. in an old box with a red ribbon on it
[判断题]权力指通过法定程序授予的、为实现组织目标、在实施领导过程中,对下属施行的强制性影响力和制约力。()
[填空题]丙纶吸湿性(),在使用过程中容易起静电和起球。细旦丙纶具有较强的(),水汽可以通过纤维中的毛细管来排除。
[填空题]遇到恶劣( )天气时谨慎缓行,出现前述等特殊原因不能按时到岗,应及时与自己的直接上级电话联系请假,绝不能赶时违规超速冒险行驶。
[单项选择]血压计袖带()
A. 灭菌
B. 高水平消毒
C. 中水平消毒
D. 低水平消毒
E. 清洁
[单项选择]在修理B220型龙门刨床时,测量床身导轨在水平面内的直线度的量具是()。
A. 250mm水平仪座
B. 500mm的水平仪座
C. 光学平直仪
D. 500mmX500mm的方形角尺
[单项选择]纳税人在规定的期限内缴清税款、滞纳金的,税务机关应当在( )内将质物返还给纳税担保人,解除质押关系。
A. 1日
B. 24小时
C. 3日
D. 3个工作日
[单选题]将-823修约到“百”数位的0.2单位修约是( )
A.-820
B.-800
C.800
D.-830
[单选题]离心泵的润滑油变质或变脏,可能会造成( )。
A.压力波动大
B.流量低或无流量
C.轴承温度上升
[多选题]接入低压配电网的分布式电源,并网点应安装()、具备开断故障电流能力的开断设备。
A.易操作
B.可闭锁
C.具有明显开断指示
D.电网侧应能接地
E./
F./
[判断题]煤气中具有毒性的成分有CO和H2 ( )
A.正确
B.错误
[单选题]伤员脱离电源后,判断伤员有无意识应在( )s以内完成。
A.5
B.10
C.30
D.60
[单项选择]Albert Einstein once attributed the creativity of a famous scientist to the fact that he "never went to school, and therefore preserved the rare gift of thinking freely". There is undoubtedly truth in Einstein’s observation. Many artists and geniuses seem to view their schooling as a disadvantage. But such a truth is not a criticism of schools. It is the function of schools to civilize, not to train explorers. The explorer is always a lonely individual whether his or her pioneering be in art, music, science, or technology. The creative explorer of unmapped lands shares with the genius what William James described as the "faculty of perceiving in an unhabitual way". Insofar as schools teach perceptual patterns they tend to destroy creativity and genius. But if schools could somewhat exist solely to cultivate genius, then society would break down. For the social order demands unity and widespread agreement, both traits are destructive to creativity. There will always be conflict between
A. helped develop the creativity of a scientist
B. preserved a rare gift for a scientist
C. prevented a scientist from thinking freely
D. contributed a lot to science and technology
[单选题] APU的燃油来自:
A.中央油箱
B.辅助油箱
C.2号主燃油箱
D.1号主燃油箱
[单选题]在团的全国代表大会闭会期间,()执行全国代表大会的决议,领导团的全部工作。
A.团的中央常务委员会
B.团的中央委员会
C.团的中央书记处
[单项选择]氯丙嗪抗精神病作用机制主要是
A. 激动中枢M胆碱受体
B. 阻断中枢多巴胺受体
C. 抑制脑干网状结构上行激活系统
D. 阻断中枢5-HT受体
E. 阻断中枢α肾上腺素受体
[单选题]心电图区别心肌梗死和心绞痛最有意义的改变是
A. ST段上升
B. T波呈"冠状T"波倒置
C. ST段上升合并高耸T波
D. T波异常高耸
E. 病理性Q波
[单选题]关于材料的强度和剐度,叙述正确的是( )。
A.材料的刚度与强度有关,强度越大,刚度也越大
B.高地应力条件下,巷道围岩的强度越大,其稳定性越好
C.强度反映的是材料抵抗破坏的能力,而刚度则表示材料抵抗变形的能力
D.刚度反映的是材料的大小和形状在任何条件下都保持不变的能力
[单项选择]( )是指在建设项目筹资经济活动中,债务人或者第三人将其动产移交债权人占有,将该动产作为债权的担保。
A. 筹资质押
B. 优先受偿
C. 账户质押
D. 动产质押
[单选题]根据相关规定,是我国集中统一的新闻发布机关,承担着发布重要政务新闻的职能。()
A.人民日报社
B.中央电视台
C.中央人民广播电台
D.新华通讯社
[简答题]心泵输送含有杂质的液体时,按是什么区分的叶轮形式不宜采用开式?
[多选题]高压电力电缆的基本结构分为哪几个部分?( )
A.线芯(导体)
B.绝缘层
C.屏蔽层
D.保护层
[单项选择]控制机器指令执行的微程序存放在______中。
[填空题]消毒是指杀灭或清除传播媒介上的(),使其达到无害化的处理。
[单选题]PON口光模块的接口类型是
A.LC
B.SC
C.FC
D.RJ-45
[单项选择]
A. enormously
B. abundantly
C. instinctively
D. personally
[单项选择]在窗体中添加一个冬称为Command1的命令按钮,然后编写如下程序: Private Sub Command1_Click( ) Prim Tab(1);“第一”, Print Tab(6);“第二”, End Sub 程序运行后,如果单击命令按钮,在窗体上显示的内容是(口表示空格)
A. 第一口口第
B. 第一第二口口
C. 第一口口 第二
D. 第一口口 第二
[单项选择]片剂辅料中,粉末直接压片常选用的稀释剂是
A. 糖浆
B. 微晶纤维素
C. 微粉硅胶
D. PEG6000
E. 硬脂酸镁
[单选题]"测得三极管ib=30μA时ic=2.4mA,而ib=40μA时ic=3mA,则该管的交流电流放大系数β为( )。
A.60
B.75
C.80
D.100"
[多选题]您可以根据业务的需要,选择采用手动或者镜像的方式进行阿里云的云服务器ECS实例的使用环境的部署。针对这两种部署方式,以下说法中正确的包括:( )。
A.如果您使用镜像市场的镜像来重新初始化ECS实例,可以通过更换系统盘来完成操作,同时数据盘的数据也会受到影响
B.在创建ECS实例时,可以选择云市场的镜像来快速获得所需的应用程序,无需自行安装,如PHP、MySQL 等
C.阿里云的云市场提供了丰富的镜像资源,大部分镜像都集成了操作系统和应用程序
D.如果您需要个性化定制的运行环境,可以使用手动部署
[判断题]根据DL/T448-2016,运行质量检验的电能表电能表日计时误差应不大于0.5s/d。
A.正确
B.错误
[单项选择]关于Windows Server基本特征的描述中,正确的是( )。
A. Windows 2000 开始与IE集成,并摆脱了DOS
B. Windows 2003依据.NET架构对NI技术做了实质的改进
C. Windows 2003 R2可靠性提高,安全性尚显不足
D. Windows 2008重点加强安全性,其他特征与前面版本类似
[多选题]助农取款业务管理中,省联社电子银行部的职责( )
A.负责制定、完善助农取款业务管理制度,明确工作职责,规范业务操作。
B.组织全省业务培训,指导各行社制定营销与宣传方案。
C.按照人民银行、银监部门要求,及时报送各类报表、报告。
D.负责与农信银进行账务核对、差错处理和清算工作;负责法人机构手续费清分工作。