热门试题:
[单项选择]我国的上海证券交易所及深圳证券交易所对B股都曾经实行过回转交易制度,下列说法正确的是()。
A. 过去,上海证券交易和深圳证券交易所的B股实行的都是T+1回转交易制度
B. 过去,上海证券交易所和深圳证券交易所的B股实行的进行的都是T+0回转交易制度
C. 过去,上海证券交易所B股实行的是T+0回转交易制度,深圳交易所B股实行的是T+1回转交易制度
D. 过去,上海证券交易所B股实行的是T+1回转交易制度,深圳交易所B股实行的是T+0回转交易制度
[单项选择]在法人治理结构中, ( )是监督机构,向股东会负责,对董事会和经营管理层的决策和经营管理活动进行监督。
A. 股东会
B. 监事会
C. 董事会
D. 经营管理层
[判断题]等离子切割时被割金属全部电离成了金属离子。
A.正确
B.错误
[判断题]根据《煤矿安全培训规定》,煤矿首次采用新工艺、新技术、新材料或者使用新设备的,岗位从业人员可以直接上岗作业。
A.正确
B.错误
[判断题]我们可以看到丰田的知识创造过程。可以说,TPS构成了一个完整的管理体系,它的创造者、推动者面对市场的变化,受到外部和已有思想、制度的启发,创造出属于自己的知识并应用于实践,取得了惊人的绩效。( )
A.正确
B.错误
[单选题]禁止停留车辆,但允许停留机车的线路是( )。
A.安全线
B.避难线
C.正线
D.机车走行线
[判断题]最长区间为茶山~聚湖路,长度为2147m,最短区间为博爱路~常州火车站,长度为723m。
A.正确
B.错误
[多选题] 工作票票面上的( )等关键字不得涂改。
A.时间、工作地点
B.线路名称
C.设备双重名称
D.动词。
[判断题]企业要健全完善并严格执行各项安全生产规章制度,规范生产经营行为,坚持不安全不生产。
A.正确
B.错误
[多选题]混凝土在高温施工环境下施工,可采取的措施有( )。(2016 年真题)
A.在早间施工
B.在晚间施工
C.喷雾
D.连续浇筑
E.吹风
[单选题]下列说法正确的( )。
A.物体运动快,它的加速度一定大
B.物体的速度变化大,它的加速度一定大
C.物体的速度变化快,它的加速度一定大
D.物体的速度为零,它的加速度一定为零
[单选题]下列传输介质中,哪种传输介质的抗干扰性最好?( )
A.双绞线
B.光缆
C.同轴电缆
D.无线介质
[单项选择]To us it seems so natural to put up an umbrella to keep the water off when it rains. But actually the umbrella was not invented as protection against rain. (77)Its first use was as a shade against the sun.
Nobody knows who first invented it, but the umbrella was used in very ancient times. Probably the first to use it were the Chinese, in the eleventh century B.C.
We know that the umbrella was used in ancient Egypt and Babylon as a sunshade. And there was a strange thing connected with its use: it became a symbol of honor and authority. In the Far East in ancient times, the umbrella was allowed to be used only by royalty or by those in high office.
In Europe, the Greeks were the first to use the umbrella as a sunshade. And the umbrella was in common use in ancient Greece. But it is believed that the first persons in Europe to use the umbrella as protection against the rain were the ancient Romans.
During the Middle Ages, the use of the umbrella practically di
A. Women enjoy using umbrellas with various kinds of colors nowadays.
B. The inventor of the umbrella is unknown.
C. Once ordinary people had no right to use umbrellas.
D. Umbrellas were popular and cheap in ancient times.
[单选题]根据《生产安全事故应急预案管理办法》,生产经营单位每半年至少组织一次()
A.综合应急预案演练
B.专项应急预案演练
C.现场处置方案演练
D.应急预案评估
[单项选择]用于描述变异程度的指标是()
A. 总体均数
B. 样本均数
C. 中位数
D. 标准差
E. 相对数
[单项选择]长期毒性试验至少要用n种动物
A. 一种
B. 两种
C. 三种
D. 四种
E. 五种
[单选题]司机在调车作业中应正确及时地执行信号显示(作业指令)和调车速度的要求,没有信号(指令)不准动车,信号(指令)不清立即( ) 。
A.减速
B.停车
C.减速或停车
[单选题] 对能溶于水的有毒或刺激性气体,可喷射雾状水流,降低其在空气中的( )。(中)
A. 毒性
B. 比重
C. 浓度
D. 质量
[单项选择]在扬州瘦西湖划船,远方的主景是白塔,通向白塔的两岸是长堤春柳。从湖中看两岸长堤春柳与远方白塔形成的构景手法是( )。
A. 对景
B. 夹景
C. 借景
D. 添景
[填空题]发生水冲击后,汽轮机轴向推力____________ 。
[判断题]地铁限界分为:地铁建筑限界、地铁设备限界、机车车辆限界。( )
A.正确
B.错误
[单选题] 电缆附件包括( )。
A.终端头和中间接头;
B.支架;
C.金具;
D.保护管;
[判断题]中间站一批作业中断继续作业时,信号员准备的第一钩进路由车站值班员确认,车站值班员准备的第一钩进路由车站值班干部确认(无值班干部时由车站值班员再次确认)。
A.正确
B.错误
[判断题]在进行高处作业时,除有关人员外,不准他人在工作地点的下面通行或逗留。工作地点下面应有围栏或装设其他保护装置,防止落物伤人。
A.正确
B.错误
[单项选择]潮汕工夫茶茶艺中“干壶置茶”是指()。
A. 用沸水烫热茶壶
B. 将茶叶放进干热的茶壶中
C. 用火将茶叶烤干
D. 用沸水淋浇茶壶外壁
[单选题]气焊时一般采用是( )。
A.中性焰
B.氧化焰
C.碳化焰
[单选题]学前教育机构内可以由值日生分发餐具的年龄班是( )。
A.小班
B.中班
C.大班
D.中班和大班
[单项选择]
In many countries such as France, Greece, and Japan, it is often more difficult for students to pass the college entrance exams than to do the course work when they are actually in college and students who don’ t have much money are at a disadvantage. Students prepare for these tests for years in advance. Often, students attend a private school at night to get ready for them. These private schools are usually expensive. If their families don’ t have much money, students can’ t attend and they might not pass the entrance exams without this extra preparation.
In contrast, students can easily get into an American or Canadian college--at least more easily than in other countries. American students take an entrance exam called the S. A. T(the Scholastic Aptitude Test(学习能力测验). However, colleges do not consider only S. A.T. scores. They also consider a student’ s grades and activities throughout high school. A student who has done well in high sch
A. pass the entrance exams
B. study in private schools
C. earn enough money
D. do some course work
[判断题]人体的散热还可通过循环血流,将深部组织的热量带至上下组织,通过扩张的皮肤血管散热,因此经过皮肤血管的血流越多,散热就越少。( )
A.正确
B.错误
[多选题]书面派工记录内容应包含()派工时间、工作结束时间、安全措施(注意事项)及完成情况等内容。
A.指派人
B.工作负责人
C.工作任务
D.工作地点
[判断题]电源的输出功率与输出电流无关。
A.正确
B.错误
[单选题]目前在局域网中,除通信线路外最主要、最基本的通信设备是
A.网卡
B.调制解调器
C.BNC-T连接器
D.路由器
[单选题] 电客车入场段时,在终点站清客完毕后以()模式运行至转换轨停妥后,联系信号楼回库。
A. ITC-A.M
B.CBTC-CM
C.CBTC-A.M
D.RM
[单项选择]我国技术标准规定电力系统的额定工作频率是()Hz。
A. 40
B. 50
C. 60