热门试题:
[单选题]ATO驾驶模式时,以下哪种情况会导致列车产生紧急制动( )。( )
A.运行中单个车门显黄
B.安全门报警
C.接触网断电
D.以上都是
[判断题]李某,17岁,无前科,因诈骗被依法决定行政拘留5日,应对其不执行行政拘留处罚。( )
A.正确
B.错误
[多选题] 利用故障录波器判断相邻线路发生不对称接地故障时有如下特点( ) 。
A. 故障相电流显著增大
B. 故障相电压显著降低
C. 出现零序电流、零序电压
D. 出现负序电流、负序电压
[多选题]促乳素作用的两个主要靶器官是（24）
A.子宫
B.阴道
C.乳腺组织
D.黄体组织
[填空题]软交换技术区别于其它技术的最显著特征,也是其核心思想的三个基本要素是:开放的业务生成接口、综合的设备接入能力、( )。
[单项选择]化工生产须遵守安全生产禁令，进入容器和设备检修时，必须要（）。
A. 带好工具
B. 清洗储罐
C. 取样分析
D. 进行置换、通风
[判断题]用卫生间控制板反冲按钮疏通集便时，按压时间越长反冲力越小。
A.正确
B.错误
[单项选择]下列金属解毒剂中，尤以铅中毒疗效好的是
A. 二巯基丙醇
B. 二巯基丁二酸钠
C. 依地酸钙钠
D. 硫代硫酸钠
E. 亚甲蓝
[判断题]一般情况下，天线挂高越高，基站覆盖距离越小。
[判断题]进位计数制包括两个要素是基数和权数。
A.正确
B.错误
[多选题]SDH设备能提供的传输系统带宽有（ )。
A.STM-1
B.STM-4
C.STM-64
D.STM-15
[多项选择]全麻应该达到下列要求
A. 控制应激反应适当水平
B. 镇痛良好
C. 肌肉松弛
D. 意识消失
[判断题]调度人员现场检查或协调是必须戴安全帽和手套
A.正确
B.错误
[判断题]当信号增加时调节阀的推杆向下动作。
A.正确
B.错误
[简答题]某甲幼年丧母，由其父抚养长大。后其父再婚。某甲与其继母乙格格不入，造成父子关系也较紧张。后因矛盾激化，甲与其父立据宣布脱离父子关系。几年后，甲父死亡，临终留下遗书：要求把其存款平均分给甲、其妻乙及其与乙的儿子丙；但在执行遗嘱时，乙阻止将存款的1/3分给甲，声称甲与其父已脱离父子关系，已无权继承其父的遗产，并将该存款取走。甲遂向人民法院提起诉讼。请问是否正确，请分析。
[填空题]在“学生成绩”表中删除“物理分数”字段的命令为：
ALTER TABLE学生成绩______物理分数
[单项选择] Supporters of the biotech industry have accused an American scientist of misconduct after she testified to the New Zealand government that a genetically modified (GM) bacterium could cause serious damage if released.
The New Zealand Life Sciences Network, an association of pre-GM scientists and organizations, says the view expressed by Elaine Ingham, a soil biologist at Oregon State University in Corvallis, was exaggerated and irresponsible. It has asked her university to discipline her.
But Ingham stands by her comments and says the complaints are an attempt to silence her. "They’’re trying to cause trouble with my university and get me fired," Ingham told New Scientist.
The controversy began on I February, when Ingham testified before New Zealand’’s Royal Commission on Genetic Modification, which will determine how to regulate GM organisms. Ingham claimed that a GM version of a common soil bacterium could spread and destroy plants if released into the wild. Other r
A. A．Her testimony hasn’’t been supported by the EP
[单选题]发热量大的高速轴承润滑应用( )润滑。
A.二硫化钼
B.石墨
C.润滑脂
D.润滑油
[单选题] 因为流量和排出压力关系的曲线基本上是一条直线，因而对往复泵( )用改变排出压力的办法来调节流量。
A.可以
B.能够
C.不能
D.尽量
[单项选择]下列医疗费用中，纳入基本医疗保险基金支付范围的是（）。
A. 应当由第三人负担的医疗费用
B. 抢救的医疗费用
C. 治疗工伤的医疗费用
D. 在境外就医的费用
[单项选择]易飞ERP的BOM架阶最多到多少阶？（）
A. 99
B. 20
C. 15
D. 50
[判断题]所有不用的管道、电缆应该拆除，如未拆除需要做接地处理。
A.正确
B.错误
[单项选择]膏药风的皮损特征
A. 黄连、黄芩、黄柏、栀子
B. 金银花、野菊花、蒲公英、紫花地丁
C. 犀角、生地、丹皮、芍药
D. 犀角、连翘、丹皮、栀子、黄连
E. 金银花、连翘、野菊花、蒲公英、紫花地丁
[单选题]在抗日战争的淞沪会战中，率领“八百壮士”孤军据守上海四行仓库的将领是____
A.佟麟阁
B.赵登禹
C.谢晋元
D.戴安澜
[单项选择]关于他巴唑治疗弥漫性甲状腺肿的作用机制错误的是
A. 抑制甲状腺释放，T3、T4
B. 抑制甲状腺球蛋白的分解
C. 抑制TSH与甲状腺滤泡细胞的受体结合
D. 抑制甲状腺过氧化物酶活性、酪氨酸碘化及碘酪氨酸的耦联
E. 抑制T4在周围组织中转化为T3
[单项选择]色觉异常的人辨认颜色的线索是（）。
A. 色调
B. 频率
C. 明度
D. 波长
[单项选择]脊髓空洞症（）。
A. 早期很快出现完全性截瘫
B. 感觉和运动障碍自下而上发展
C. 感觉和运动障碍自上而下发展
D. 明显而持久的感觉分离现象
E. 交叉性感觉障碍
[单项选择]
According to myth, Rwanda’s ancient line of kings descended from a man with secret knowledge: He could (1) ordinary rock into smooth, gleaming iron. (2) this new technology, he taught his people to make hard, durable weapons for defeating their enemies and sharp axes for cutting the forest to make fields. By the time the first Europeans arrived in the 19th century, iron had become (3) in the kingdom of Rwanda.
Other traditional African societies tell stories of (4) ironworkers who descended from heaven or came from other lands. The prevalence of such legends (5) the importance of ironworking in these cultures, and archaeologists have long wondered if the arrival of iron metallurgy (6) the growth of complex early societies. Did foreigners (7) bring ironworking to Africa, or did Africans invent it themselves
Entering the Iron Age was not easy. Metalworkers had to melt ore at (8) temperatur
A. diamonds
B. ornaments
C. crystals
D. equipment
[单选题]二冲程增压柴油机的连杆在运转中受力状态是______.(263.790.:第02.-02.章 柴油机主要部件及检修)
A.始终受压
B.始终受拉
C.拉,压交替
D.随连杆长度而变
[单项选择]按照国家档案局和国家发展和改革委员会联合发布的《国家电子政务工程建设项目档案管理暂行办法》，档案保管期限分为永久、30年、10年三种；按照《国家重大建设项目文件归档要求与档案整理规范》，电子政务项目档案保管期限的长期是______年。
A. 50
B. 40
C. 30
D. 20
[填空题] Money spent on advertising is money spent as well as any I know of. It serves directly to assist a rapid (36) ___________of goods at reasonable prices, thereby establishing a firm home market and so making it possible to provide for export at (37) ___________ prices. By drawing attention to new ideas it helps (38) ___________to raise standards of living. By helping to increase demand it (39) ___________an increased need for labor, and is therefore an effective way to fight (40) ___________. It lowers the costs of many (41) ___________: without advertisements your daily newspaper would cost four times as much, the price of your television (42) ___________would need to be doubled, and travel by bus or tube would cost more.
And perhaps most important of all, advertising provides a (43) ___________ of reasonable value in the products and services you buy. Apart from the fact that twenty-seven Acts of Parliament govern, the terms of advertising, (44)________________________________
[单选题]正常燃烧前提下,保证烧嘴的λ值控制在合适的范围内( ),不需要单独调整烧嘴
A.(1.0±0.02)
B.(1.1±0.02)
C.(1.2±0.02)
D.(1.3±0.02)
