热门试题:
[单选题]在高速公路上遇到紧急情况避险时需注意什么( )
A.采取制动措施减速
B.向左侧转向避让
C.迅速转动转向盘躲避
D.向右侧转向避让
[单项选择]What should be the best title for the passage ______
A. The Most Famous Area in Beijing.
B. The Most Favorite Place for White-collar Dwellers.
C. Shichahai Mingles Different Cultures.
D. Shichahai--the Unique Area with Bars.
[单选题]等值线分析中要遵循同一等值线上要素( )相等和等值线一侧的数值( )高于或低于另一侧。
A.不必 不必
B.必须 不必
C.不必 总是
D.必须 总是
[单选题]气室抽真空及密封性检查应按照厂家要求进行,厂家无明确规定时,抽真空至133Pa以下并继续抽真空30min,停泵30min,记录真空度(A),再隔5h,读真空度(B),若(B)-(A)值<133Pa,则可认为合格,否则应进行处理并重新抽真空至合格为止
A.正确
B.错误
[单项选择]中国的旧民主主义革命转向新民主主义革命的重要事件是()。
A. 新文化运动
B. 辛亥革命
C. 五四运动
D. 戊戌变法
[单选题]牙周膜的正常厚度为
A.0.1mm
B.0.15~0.38mm
C.0.4mm
D.3~4mm
E.1~2mm
[单选题]上层建筑的内容十分丰富,可以把它们划分为两个部分。这两个部分是
A.政治思想和政治制度
B.法律思想和法律制度
C.立法机关和行政机关
D.政治上层建筑和思想上层建筑
[单选题]沉井采用抓斗进行下沉时,如钢丝绳缠绕在一起而需要转动抓斗进行排除时,作业人员 应()
A.戴好防护手套
B.站在井边
C.佩戴安全带
D.站在有护栏的部位
[判断题]化学事故发生后,采用喷射水或其他相应的惰性介质,使危险物的浓度迅速升高,从而达到排除目的。 ( )
A.正确
B.错误
[多选题]若地陪不住饭店,应将自己的电话号码告知( )。
A.全陪
B. 饭店前台
C.游客
D.领队
E.司机
[判断题]专职消防队员晋升站长、政治指导员,应在副站长或副政治指导员岗位任职达2年以上,应为中共正式党员;通过灭火救援员职业技能鉴定中级考试。 ( )
A.正确
B.错误
[单项选择]胆道梗阻最好发的部位是( )
A. 壶腹段
B. 胰上段
C. 肝门段
D. 胰腺段
E. 不确定
[单选题]假设褐煤的发热量是3000大卡,那么1吨褐煤排放的二氧化碳是1吨标煤石油排放的( )倍、天然气排放的( )倍。
A.1.3;1.7
B.0.6;0.7
C.3.0;3.6
D.1.6;2.2
[单选题]煤矿企业每年必须至少组织( )次矿井救灾演习。
A.1
B.2
C.3
[判断题]探火时要先开探火孔,后打开蒸汽阀门。( )
A.正确
B.错误
[多选题]下列哪些是以太网终端所需要具备的功能
A.检测总线状态
B.判断自己是否接收者
C.帧对界
D.成帧
[不定项选择题]A.滑石粉
A.土
B.河砂
C.朱砂
D.米
E.常用于炮制山药的辅料是
[单项选择]Promising Results from Cancer Study
A new experimental vaccine (疫苗) has shown promising results in the fight against lung cancer. In a small Texas-based study, a vaccine developed by scientists at Baylor University Medical Centre in Dallas, USA, cured lung cancer in some patients and slowed the progress of the disease in others.
Researchers have reported encouraging findings from this small study. Forty-three patients suffering from lung cancer were involved in these trials. Ten of these patients were in the early stages and thirty-three in the advanced stages of the disease. They were injected with the vaccine every two weeks for three months, and were carefully monitored for three years. In three of the patients in the advanced stages of cancer, the disease disappeared and in the others, it did not spread for five to twenty-four months. However, no great difference was seen in the patients in the early stages of the illness.
This new vaccine uses the patients’ own immune system. I
A. Right
B. Wrong
C. Not mentioned
[判断题]一级动火工作票由动火工作票签发人签发,工区安监负责人、消防人员审核,工区分管生产的领导或技术负责人(总工程师)批准,必要时还应报当地地方公安消防部门批准。
A.正确
B.错误
[单项选择]文书工作的每道程序和手续,都有各自的规范和技术要求,不可以有()。
A. 偏重性
B. 重点性
C. 随便性
D. 随意性
[单项选择]Most of ______ live in______
A. Germans, German
B. German, Germen
C. Germen, Germany
D. Germans, Germany
[简答题]列出 YB45包装机裹包成型系统常见易损件
[多选题]事故分为责任事故和非责任事故,其中责任事故(事件)按责任关系分为()等
A.直接责任
B.全部责任
C.管理责任
D.同等责任
[多选题]坚定文化自信,是事关国运兴衰、事关文化安全、事关民族精神独立性的大问题。坚定中国特色社会主义道路自信、理论自信、制度自信,说到底就是要坚
定文化自信。讲文化自信,我们有充分理由和充足底气,因为中国特色社会主义文化( )
A.熔铸于生机勃勃的社会主义先进文化
B.承继于激昂向上的革命文化
C.源自于博大精深的中华优秀传统文化
D.植根于中国特色社会主义伟大实践
[简答题]Sending a robot into space to gather information is a viable option, but should only be regarded as that--an option. Even the most technologically advanced robots cannot and should not replace manned missions to outer space. Certainly it is cheaper and less dangerous to launch a computer probe that can gather reams of data, but often the information obtained by a machine only serves to produce more questions than it answers. Therefore, the space program should allow manned missions to follow up on those initial information-gathering robotic ventures.
While manned missions are more costly than are unmanned missions, they are also more successful. Robots and astronauts use much of the same equipment in space, but a human is more capable of calibrating those instruments correctly and placing them in appropriate and useful positions. A computer is often neither as sensitive nor as accurate as a human in managing the same terrain or environmental circumstances. Robots are also not as e
[单选题]当变压器负载一定(即损耗不变),而周围环境温度不同时,变压器的实际温度就( )。
A.恒定
B.不同
C.上升
[判断题]电缆施工完成后不应将穿越过的孔洞进行封堵。
A.正确
B.错误
[单项选择]A secretary in the future will ______ .
A. be better paid
B. have less work to do
C. have higher status
D. have more work to do
[多项选择]下列选项属于心理风险因素的是( )。
A. 机械性能不良引发人员伤亡
B. 投保后疏于对损失的防范
C. 人的品质败坏
D. 他人的欺诈行为
E. 自认为技术娴熟而不适用个人安全防护用具
[填空题]断齿常是由细微()逐步扩展而成。(1.0分)
[多选题]大跨度大空间建筑发生火灾时,全勤指挥部到场后应设立现场作战指挥部,及时调取起火单位建筑( )、功能区划图、( )、( )结构图以及消防设计图纸。[3分]
A.方位图
B.总平面图
C.楼层图
D.立面图
[单选题]防护分歧道岔的线路所通过信号机,其机构外形和显示方式,应与( )相同,引导灯光应予封闭。
A.出站信号机
B.进路信号机
C.进站信号机
D.通过信号机
[单项选择]公共就业服务机构为残疾人提供的就业服务应当()。
A. 减免收费
B. 按规定收费
C. 免费
[简答题]高速铁路十一跨三断口分相检修周期为<--NRC-->年。
[单项选择]运输中国烟草国际有限公司代理的中国烟草物资公司进口烟用物资,由()根据中国烟草物资公司的调拨单签发烟草专卖品准运证。
A. 国务院烟草专卖行政主管部门
B. 进口口岸所在地的省级烟草专卖行政主管部门
C. 进口口岸所在地的地市级烟草专卖行政主管部门
D. 进口口岸所在地的有权签发准运证的烟草专卖行政主管部门