热门试题:
[单选题]有氧氧化开始于
A.ATP
B.TG
C.乙酰 COA
D.NADPH
E.CO2
[判断题]15周岁的刘某教唆17周岁的胡某对其邻居实施强奸,结果胡某到其邻居家后没有实施强奸行为,但实施了盗窃行为,则刘某不构成犯罪。
A.正确
B.错误
[判断题]托运人托运的货物,分为保价运输和不保价运输,按哪种方式运输,由托运人在运单中选择确定。
A.正确
B.错误
[单项选择]增强左旋多巴疗效的药物是( )
A. 维生素B6
B. 多巴胺
C. 氯丙嗪
D. 苄丝肼
[单选题]()是指电力系统受到小扰动后,不发生非周期性失步,自动恢复到初始运行状态的能力。
A.静态稳定
B.电压稳定
C.暂态稳定
D.动态稳定
[填空题] There are many features that 【B1】 a movie as American, but perhaps the most 【B2】 is the theme of the loner-hero (孤胆英雄). In the western movie, which comes out of many 【B3】 of the American West, a typical figure is the lonesome cowboy. He wanders into a town and 【B4】 out its troubles. Then the strong and independent hero rides off into the sunset 【B5】 . Americans like this 【B6】 in their films because they are 【B7】 independent, and individualism 【B8】 a great deal with them. An individual, who is able to 【B9】 the evils of the world, or of a small town, is someone to admire.
Even the gangster movie, a very popular 【B10】 of the typical American film, usually has a hero. 【B11】 he is a lawman out to catch the criminals or a gangster who suddenly sees the light and tries to go 【B12】 . During the violence-ridden period of Prohibition in the 1920s, the gangster movie 【B13】 in popularity. These films kept the same 【B14】 as the western — the bad cannot triumph. One good person can save the
A. A.with
B.for
C.to
D.in
[单选题]CR400AF动车组新转向架换装时,确认新转向架车轮直径与该车辆其它轮对车轮直径差满足同一转向架轮径差≤( )。
A.1mm
B.4mm
C.5mm
D.3mm
[单项选择]
Study Helps Predict Big Mediterranean Quake
Scientists have found evidence that an overlooked fault in the eastern Mediterranean is likely to produce an earthquake and tsunami every 800 years as powerful as the one that destroyed Alexandria in AD 365.
Using radiocarbon dating techniques, simulations and computer models, the researchers recreated the ancient disaster in order to identify the responsible fault. "We are saying there is probably a repeat time of 800 years for this kind of earthquake," said Ms. Beth Shaw, an earthquake scientist at the University of Cambridge, who led the study. Scientists study past earthquakes in order to determine the future possibility of similar large shocks.
Identifying the fault for the AD 365 earthquake and tsunami is important for the tens of millions of people in the region, Ms. Shaw said. The fault close to the southwest coast of Crete last produced a big enough quake to generate a tsunami
A. Right
B. Wrong
C. Not mentioned
[单选题]色彩对( )影响最深,主要是冷暖感、轻重感、距离感、深度感、运动感以及约定俗成的各种象征意义。
A.作品的大小
B.人的心理感受
C.作品的造型
D.作品的轮廓
[判断题]因扑救森林火灾、防洪抢险等紧急情况需要采伐公路护路林的,组织抢险的单位或者部门应当自紧急 情况结束之日起30日内,将采伐林木的情况同时报告当地公路管理机构和林业行政主管部门。( )
A.正确
B.错误
[单选题]李某,男.30岁。因拟诊“人禽流感”住院治疗,对该病人实施的预防控制措施属于( )
A.甲类传染病按甲类处理
B.乙类传染病按乙类处理
C.丙类传染病按丙类处理
D.甲类传染病按乙类处理
E.乙类传染病按甲类处理
[简答题]在旅游接待过程中、容易发生哪些旅游安全事故
[填空题]游客______参加的舞会或文娱节目,______可代其购票。
[多选题]矿产资源储量是动态变化的,变化的原因主要有( )。
A.天气气候变化引起的资源储量变化
B.生产矿山因采出矿石消耗了原地质勘查探明储量
C.矿山生产勘探增加或减少了资源储量
D.技术经济条件变化引起的资源储量变化
E.开采工具落后导致矿产资源储量变化
[单选题]实施列车制动系统站折试验前,由()通知司机。
A.车站
B.随车机械师
C.列车长
[单项选择]腰椎结核的蔓延途径为()
A. 咽后壁脓肿,流注至锁骨上窝
B. 椎旁腰大肌脓肿
C. 椎旁脓肿
D. 沿髂腰肌流注至腹股沟部,甚至到胭窝
E. 腰大肌脓肿和骶前脓肿
[单项选择]为保证碎石沥青混凝土的运输重量,防止离析现象发生,在装车时应( )。
A. 从车头到车尾顺序装料
B. 从车尾到车头顺序装料
C. 先车头再车尾后中间顺序装料
D. 在中部装料,让料自流到两端
[单项选择]肾病综合征患儿,禁盐两个月,近三天频繁呕吐,水肿未消退,嗜睡,血压下降,惊厥二次,诊断可能为
A. 肾病综合征伴病毒性脑炎
B. 肾病综合征伴急性胃肠炎
C. 肾病综合征伴低钙惊厥
D. 肾病综合征伴低钠血症
E. 肾病综合征伴低钾血症
[单选题]接触网运行工区单方向管辖距离不宜超过( ),枢纽及区段站可单独设置。
A.20km
B.25km
C.30km
D.40km
[多项选择]影响建筑安装工人人工单价的因素主要有( )。
A. 人工消耗水平
B. 社会平均工资水平
C. 生活消费品物价的变动
D. 劳动力市场供求变化
E. 社会保障和福利政策
[填空题]检修后锅炉上水温度与汽包壁金属温度差应不大于()。
[单项选择]某科学家做“噬菌体侵染细菌的实验”时,对噬菌体的DNA用32P标记,让其中一个已标记的噬菌体去侵染未标记的细菌,最后释放出100个噬菌体,则下列说法正确的是()
A. 噬菌体侵染细菌的实验可以证明DNA是主要的遗传物质
B. 最后释放出的100个噬菌体中,有98个噬菌体的DNA含32P
C. 标记噬菌体的方法是用含32P的培养基培养噬菌体
D. 标记噬菌体的方法是用含32P的培养基培养细菌,再用此细菌培养噬菌体
[单选题]列车和单机由司机负责指挥。列车或单机在车站时,所有乘务人员应按( )的指挥进行工作。
A.列车调度员
B.调度所主任
C.调度所值班主任
D.车站值班员
[单选题]《安全生产风险分级管控体系通则》应对()提出具体要求。
A.以下都是
B.风险评价
C.确定风险点与危险源辨识
D.风险分级管控
[多选题] 以下选项中适合冷疗的是:
A.牙痛
B.急性扭伤早期
C.大面积组织损伤
D.深部化脓病灶
E.中暑
[单选题]咖啡厅日营业结束后,咖啡师清洁制作区域时应先清洁( )(单选题)
A. 壶具
B. 杯具
C. 半自动咖啡机
D. 台面
[单选题]376、放大电路的静态工作点,是指输入信号()管子的工作点。
A.A、为零时
B.B、为正时
C.C、为负时
D.D、很小时
[判断题]混合物的爆炸极限不是固定的,而是随混合物的温度、压力等变化的。
A.正确
B.错误
[多项选择]客观的销售预测方法有()
A. 市场试验
B. 时间序列分析
C. 销售团队合成
D. 经理评定法
E. 德尔菲法
[单选题]成套接地线应由有()的多股软铜线和专用线夹组成。
A.绝缘护套
B.护套
C.透明护套
D.橡胶护套
[填空题]Sports and games make our bodies strong, prevent us from getting too fat, and keep us healthy. But these are not their only use. They give us{{U}} (36) {{/U}}practice in making eyes, brain and muscles work together. In tennis, our eyes see the ball coming,{{U}} (37) {{/U}}its speed and direction and pass this information on to the brain. The brain then has to decide what to do, and to send its orders to the{{U}} (38) {{/U}}of the arms, legs, and so on, so that the ball is met and hit back where it{{U}} (39) {{/U}}to go. All this must happen with very great{{U}} (40) {{/U}}, and only those who have had a lot of practice at tennis can carry out this complicated{{U}} (41) {{/U}}of events successfully. For those who work with their brains most of the day, the practice of such skills is especially useful.
Sports and games are also very useful for{{U}} (42) {{/U}}. In their lessons at school, boys and girls may learn about such virtues as unselfishness, courage,{{U}} (43)
[多项选择]水污染防治控制区为一般控制区的水域功能分类包括( )。
A. Ⅰ类
B. Ⅱ类
C. Ⅲ类
D. Ⅳ类
E. Ⅴ类
[单选题]动车组以外的列车司机在列车运行中遇机车信号、列车运行监控装置(轨道车运行控制设备)发生故障时,司机应控制列车运行至前方站停车处理或请求更换机车,在自动闭塞区间,列车运行速度不超过( )。
A.20 km/h
B.40 km/h
C.60 km/h
D.80 km/h
[填空题]Internet已经成为全球最大的、开放式的计算机互联网络。网络中每一台主机都有惟一的 【14】 位IP地址。
[多选题]业扩报装工作应该坚持(____)的工作原则。
A.一口对外
B.便捷高效
C.三不指定
D.办事公开
[判断题]公差等于最大极限尺寸与最小极限尺寸之代数差的绝对值。( )
A.正确
B.错误
[多选题]消防部队常见的消防泵主要包括( )等类型。
A.车用消防泵
B.齿轮泵
C.手抬机动消防泵
D.浮艇泵
E.射流泵