热门试题:
[单选题]当市电正常时,由于在线互动式UPS不启动逆变器,而是将输入市电经过加工后为负载供电,因此这种UPS的输出频率随市电频率而变,即负载接收的就是市电频率,这就容易使人产生在线互动式UPS不稳频的感觉。( )
A.A-正确
B.B-错误
[单项选择]在召开远程会议时,应首先考虑( )
A. 技术要求、保密要求
B. 省时、省力
C. 交通不便
D. 互动性强
[简答题]简述援引不可抗力条款处理事故应注意的事项。
[多选题]根据《变电安规》,下列( )工作需填用变电站(发电厂)第二种工作票。
A.控制盘和低压配电盘、配电箱、电源干线上的
B.高压设备上工作需要部分停电者
C.二次系统和照明等回路上的工作,无需将高压设备停电者或做安全措施者
D.高压电力电缆不需停电的
[多选题]智慧变电站辅助设备辅助设备二次系统可以分为?
A.执行层
B.站控层
C.汇聚层
D.传感层
[单选题]焊接或切割作业结束后,需要做好的必要措施不包括( )。
A.仔细检查作业场所周围及防护设施确认无起火危险
B.整理好器具
C.打扫作业场所
D.切断电源或气源
[单选题]钻头之钻唇易钝,发出吱吱声,可能的原因是( )
A.转数太快
B.切削剂太多
C.钻头太硬
D.工件太软
[单选题]JC、JC-1、JC-2、JC-3型新品旁承座须有永久性()标识。
A.A、厂家
B.B、铸造号
C.C、型号
D.D、材质
[单选题]视频服务器由视音频压缩编码器、( )、网络接口、视音频接口、RS485RS232串行接口、协议接口、软件接口等构成。
A.输入输出接口
B.显示器
C.输入输出通道
D.微处理器
[多项选择]联网收费的特征有()。
A. 联网收费,从外部表现特征看,就是将原来收费单元合并为几路一收费的收费单元模式
B. 在区域或全*省进行联网收费,驾乘人员在路网内行驶,只需要入口领取通行券一次,出口缴纳通行费一次,避免了联网前多次领券交费现象
C. 联网收费,从外部表现特征看,就是将原来一路一收费的收费单元合并为几路一收费的收费单元模式
D. 在区域或全*省进行联网收费,驾乘人员在一个路网内行驶,只需要入口领取通行券一次,出口缴纳通行费一次,避免了联网前多次领券交费现象
[单选题][T]B-B-A-005 5 2 3
铁路货车站修须按照铁道部批准的站修场所、能力和规定的检修范围在(? )内开展铁路货车站修工作。
A.检修车间
B.编组站
C.站修作业场
D.专用线
[填空题]十九届五中全会指出,推进( )的新型城镇化。
[单项选择]关于酶竞争性抑制作用正确的是
A. 抑制剂的结构与底物不相似
B. 增大[S]对抑制作用无影响
C. Km↓、Vmax不变 D.Km↓、Vmax↓
D. 抑制剂和底物都与酶的活性中心结合
[单项选择]At least since the Industrial Revolution, gender roles have been in a state of transition. As a result, cultural scripts about marriage have undergone change. One of the more obvious (21) has occurred in the roles that women (22) . Women have moved into the world of work and have become adept at meeting expectations in that arena, (23) maintaining their family roles of nurturing and creating a(n) (24) that is a haven for all family members. (25) many women experience strain from trying to "do it all," they often enjoy the increased (26) that can result from playing multiple roles. As women’s roles have changed, changing expectations about men’s roles have become more (27) . Many men are relinquishing their major responsibility (28) the family provider. Probably the most significant change in men’s roles, however, is in the emotional (29) of family life. Men are increasingly (30) to meet the emotional needs of their
A. encouraged
B. expected
C. advised
D. predicted
[单项选择]下列选项中,()的变化能使离心泵工作点发生改变。
A. 润滑油位
B. 储罐液位
C. 电动机的电压
D. 油品粘度
[单项选择]公关活动策划文案的撰写过程是()。
A. 拟定策划提纲→阅读和理解各种相关资料→充实内容→集中精力撰写→修改提炼
B. 阅读和理解各种相关资料→拟定策划提纲→集中精力撰写→充实内容→修改提炼
C. 阅读和理解各种相关资料→拟定策划提纲→充实内容→集中精力撰写→修改提炼
D. 拟定策划提纲→阅读和理解各种相关资料→集中精力撰写→充实内容→修改提炼
[判断题]静压传动场车通常采用双加速踏板作为换向操纵装置。()(1分)
A.正确
B.错误
[单项选择]HRP标记的化学发光免疫分析的发光底物为()
A. 三联吡啶钌
B. AMPPD
C. 4-MUP
D. 鲁米诺
E. 吖啶酯
[判断题]在突出矿井开采煤层群时,必须首先开采保护层。()
A.正确
B.错误
[多选题]根据《宪法》的规定,在不同宪法、法律、行政法规相抵触的前提下,有权制定地方性法规的有( )。
A.省人民代表大会
B.省人大常委会
C.直辖市人民代表大会
D.直辖市人大常委会
[单选题]88. 关于行政执法监督的内容,下列说法中哪一项是正确的?
A.监督人民群众申诉、控告、检举的合理性
B.监督行政机关制定的规范性文件的合理性
C.监督人民群众申诉、控告、检举的合法性
D.监督行政执法责任制的建立和执行情况
[单选题]( )可以与立正互换。
A.稍息
B.跨立
C.立正
D.敬礼
[判断题]消防站分为普通消防站、特勤消防站和战勤保障消防站三类。
A.正确
B.错误
[填空题]The World Health Organization says more effort is needed to stop the trade in counterfeit medicines. The United Nations health agency says countries must work together to fight the growing (26) from drugs that are not what they seem.
W.H.O. officials discussed the problem during a recent high-level meeting in Rome. (27) at the conference included representatives of government agencies, (28) groups and the drag industry.
Counterfeit medicines (29) people into believing they are taking something that will make them well. Instead, it might make them sicker or even kill them.
The World Health Organization says counterfeit drugs are part of a wider problem of (30) medicines. But it says the difference is that they are purposely (31) . Some contain no active substances. Some contain dangerous substances. Counterfeit drugs can also add to the problem of drug (32)
The World Health Organizati
[单项选择]患者发热头痛,烦渴引饮,小便不利,及霍乱吐下,治宜首选()。
A. 清暑益气汤
B. 竹叶石膏汤
C. 清络饮
D. 桂苓甘露饮
E. 六一散
[判断题]从与物流的相关度看,包装可以分为内包装和外包装。( )
[单选题]在新解放区进行的土地改革,是在人民革命战争已经取 得全国胜利,统一的人民政权已经建立的条件下进行的。下 列说法不正确的是( )。
A.土地改革的目的是实行国家土地所有制
B.废除地主阶级封建剥削的土地所有制
C.土地改革仍然是一场阶级斗争
D.《土地改革法》 规定的保存富农经济的政策没有真正贯彻 执行
[单选题]转子流量计属于()流量计。
A.恒压降
B.变浮力
C.静压式
D.以上都对
[填空题]在滚动台()上拼装容器,采用卷扬机牵引,钢丝绳必须沿容器表面由底部引出,并在相反方向设置保险引绳,防止容器脱落。
[单选题]压力容器的设计、制造和安装应符合( )颁布的《压力容器安全监察规程》的有关规定。
A.巿劳动局
B.国家动力总局
C.铁路局
D.电务段
[单项选择]
Now, you’ll be coming back here to brush up your English, so you’ll want to make as much conversation as possible. Whatever you do, don’t stay in a place full of overseas students, especially if they come from one country. This is fatal. Don’t believe all the stories you hear about how unfriendly the English are. It’s just that many of them are a little shy, and they have this idea about minding their own business. In a train or restaurant, for example, they will talk to you, but you must break the ice first. Then see them talk! Any subject will do—the weather, their dogs, the Common Market, food, etc. Pardon me, not any subject. Don’t be nosy (爱管闲事的) about their private life, their incomes and expenditure, or their ages. The English worship (尊重) their privacy. Avoid religion, too. The best place to talk is in the pubs, but as you are a girl, be sure to go with someone else. Find one near where you are living and go there regularly. Someo
A. in a train
B. in a restaurant
C. in a pub
D. at home
[单项选择]公安机关对卖淫、嫖宿暗娼以及介绍或者容留卖淫、嫖宿暗娼行为可并处( )罚款。
A. 1000元以下
B. 2000元以下
C. 3000元以下
D. 5000元以下
[多项选择]从2007年3月1日起,以下哪项理财卡子账户的开户、转账、查询、销户(含提前支取,暂不允许部分提前支取)可以跨一级分行办理()。
A. 整存整取
B. 零存整取
C. 整存零取
D. 定活两便
E. 一户通
[单选题]每次操作紧急解锁装置后,必须将紧急解锁装置( ),否则会影响下一次操作。
A.拆除
B.切除
C.隔离
D.复位
[多项选择]老年人对本人的合法收入以及其他合法财产,依法享有()的权利,子女或者其他亲属不得干涉。
A. 占有
B. 使用
C. 处理
D. 收益