热门试题:
[判断题]不论原料经过多少工序的转移，都必须保证实物与冶炼熔炼号相一致。( )
A.正确
B.错误
[单项选择]
In Anglo-America there are three major ethnic groups. The first is the original Indian population, who today represents a minority group. The second is the descendents of European colonists who emigrated to the two countries before the end of the nineteenth century. These majority populations normally speak English, are highly-educated, and most of them are culturally homogeneous(同类的) in broad cultural values. A third group is made up of ethnic minorities, from Asia, Latin America, Africa, or parts of Europe who have either linguistic, religious, racial, or other cultural attributes that distinguish them from the majority population.
The United States has a varied ethnic minority pattern, without the dominance of one minority group in a specific geographical area. The largest ethnic group in America is the blacks, totaling an estimated 26 million in 1980, or 12 percent of the population. Unlike the French, the black population of the United States is not culturally an
A. comparison.
B. cause-to-effect.
C. classification.
D. definition.
[简答题]求f1=50Hz及f2=200Hz的角频率ω和周期T的大小。
[单选题]绕线式异步电动机转子串电阻分级启动,而不是连续启动的原因是( )。
A.启动时转子电流较小
B.启动时转子电流较大
C.启动时转子电压很高
D.启动时转子电压很小
[单项选择]下列说法正确的是( )。
A. 定活两便储蓄存款的利息要比活期存款低
B. 个人通知存款可以按照储户需要随时支取
C. 教育储蓄存款的利息征税税率为20%
D. 教育储蓄存款本金最高限额为2万元
[判断题]起重机操作人员应按规定的起重性能作业，非特殊情况不得超载。( )
A.正确
B.错误
[判断题]民航气象中心负责向民航地区气象中心提供业务运行.人员培训以及研究与开发等方面的技术支持,但不面向民用航空气象用户。
A.正确
B.错误
[单项选择]The use of helium for deep-sea diving
A. helped to overcome the physical discomforts the divers suffered when nitrogen was used.
B. was found by Dr. J. Hildebrand for deep - sea - diving.
C. is now still generally acknowledged as standard practice for deep- sea diving
D. may be thought to contain all the information stated in A, B, and C
[单选题]A-D-B-001 5 2 4
两相邻曲线转向角方向相反的曲线称为( )。
A.逆向曲线
B.复曲线
C.同向曲线
D.反向曲线
[填空题]中心机构活塞杆要求材质为不锈钢（ ）调制到（ ）以上。
[多选题]锅炉燃煤特性评价主要有以下哪几方面()。
A.煤的发热量
B.煤的可磨性
C.煤的挥发分含量
D.煤的灰分含量
[判断题]途经我集团公司的2462/3次（包头至临汾）旅客列车，由太原局集团公司担当乘务。
A.正确
B.错误
[单选题]不同火灾场景应使用相应的灭火剂，选择正确的灭火剂是灭火的关键。下列火灾中，能用水灭火的是（ ）。
A.普通木材家具引发的火灾
B.未切断电源的电气火灾
C.硫酸、盐酸和硝酸引发的火灾
D.高温状态下化工设备火灾
[单项选择]The polar lights known as auroras are produced when charged subatomic
Line particles, such as protons and electrons flowing from the sun through Earth’s
magnetosphere, collide with atoms and molecules in Earth’s upper atmosphere.
For reasons not entirely understood, magnetic storms, called substorms,
(5) occasionally occur where the flow of particles greatly increases and the
interplanetary magnetic field becomes much stronger. These substorms are frequently
visible on the Earth because they increase the intensity of the polar lights.
Recently, five identical probes were blasted into orbit in a $200 million US
project known as the THEMIS mission. Scientists hope the probes will be able to
(10) investigate a number of mysteries about the nature of the substorm instabilities,
including when and where substorms begin, how the individual components
of the substorm interact, and how substorms power the auroras. The missi
A. explain why it is important to invest in space research
B. explain how magnetic substorms interfere with satellite communications
C. define magnetic substorms and identify a recent scientific experiment to study them
D. compare two alternative approaches to the study of magnetic substorms
E. (E) demonstrate that unmanned probes are the best way to conduct research in space
[单项选择]如果政府购买支出的增加与政府转移支付的减少相同时，国民收入水平会出现（）。
A. 不变
B. 增加
C. 减少
D. 不相关
[判断题]通用知识：串励电动机缺点是不能在空载的情况下起动。
A.正确
B.错误
[单选题]汽轮机启动暖管时,注意调节送汽阀和疏水阀的开度是为了( )。
A.提高金属温度
B.减少工质和热量损失
C.不使流入管道的蒸汽压力、流量过大,引起管道及其部件受到剧烈的加热
D.不使管道超压。
[判断题]第三方独立聚合主体应满足所聚合单个主体的充（用）放电需求
A.正确
B.错误
[判断题] 提高成材率主要在于减少轧制过程中的金属消耗。( )
A.正确
B.错误
[单选题]“欲把西湖比西子，淡妆浓抹总相宜”，西湖是个盛产美景的地方，下列不属于“西湖十景”的是____。
A.南屏晚钟
B.曲院风荷
C.二泉映月
[单选题]评价信贷资产质量的指标不包括（ ）。
A.信贷余额扩张系数
B.利息实收率
C.流动比率
D.加权平均期限
[判断题]个人公积金社保信用贷款，客户在授信期限内可按规定申请提前终止授信、提前还款、还款方式变更。
A.正确
B.错误
[单选题]超限、超重货物受理资料后，发站测量核对货物外形尺寸和重心位置，以（）向铁路局货运主管部门申请装运办法。
A.超限超重货物运输申请电报
B.超限超重车辆挂运申请电报
C.超限超重货物运输请示电报
D.超限超重货物运输记录
[单选题]大运量城市轨道交通系统是指高峰时段单向运输能力达到（ ）。
A.Aq≧3万人次/小时
B.1.5 万人次/小时≦q﹤3万人次/小时
C.0.5 万人次/小时 ≦q﹤1.5万人次/ 小时
D.q ﹤0.5 万人次/ 小时
[简答题]湿地保护是环境保护的重要领域，是国际自然保护的一个热点，请问：世界湿地日为每年的几月几号？
[单项选择]疱疹性咽峡炎的病原体（）
A. 柯萨奇病毒
B. 腺病毒3，7型
C. 溶血性链球菌
D. 呼吸道合胞病毒
E. EB病毒
[判断题]线路两侧有大量堆积物地段，严禁卸车。
A.正确
B.错误
[简答题]《铁路旅客运输办理细则》（铁运〔1997〕103号）规定，学生票中“没有工资收入的学生”具体含义是什么？
[单选题]保价运输的货物，发生全批损失时，赔偿额最高不超过( )。
A.保价金额
B.实际价格
C.到达地市场价格
D.发送地市场价格
[判断题]电力机车通过分段绝缘器时应断电通过。 ( )
A.正确
B.错误
[单项选择]患者，男性，25岁，以饮酒后左上腹疼痛伴恶心、呕吐8小时就诊。该患者腹痛呈持续性刀割样疼痛，并向左腰背部放射，呕吐后疼痛不缓解。查体：急性痛苦面容，大汗淋漓，左上腹压痛明显。化验血淀粉酶明显高于正常。提问：对鉴别轻型和重症胰腺炎，有帮助的一项是（）
A. 黄疸
B. 上腹部疼痛向腰背部放射
C. 尿糖阳性
D. 血淀粉酶增高
E. CRP明显升高
F. 尿淀粉酶升高
[单项选择]上唇周围的疖被挤压或处理不当的危险在于可
A. 引起海绵状静脉窦炎
B. 导致脑脓肿
C. 形成急性蜂窝织炎
D. 抗生素治疗无效
E. 并发脓血症
[填空题]萌芽状态的体育一般分为1、（）中的体育；2、（）；3、（）4、（）
[单选题]初步加工时为了保持鳞间脂肪不需要去鳞的鱼是（）。
A.鲩鱼
B.青鱼
C.鲤鱼
D.鲈鱼
[单选题]在建筑施工现场，630kN.m 以下（不含 630kN.m）、出厂年限超过( )年的塔式起重机，必须由有资质评估机构评估合格后，可安装使用。
A.5
B.10
C.15
D.20
[判断题]CRH380B动车组三键复位结束后，可以不用关闭维护模式。
A.正确
B.错误
[填空题] (31) the National Cranberry Assn. held its 29th annual meeting in 1959, food writer Clementine Paddleford made the rounds. Or, (32) she described it, she "went begging ideas from growers’ wives. "This was not unusual, really, (33) the food editor of This Week magazine, a Sunday supplement to The Times. For years she had scoured the country, (34) for new ways to turn simple ingredients into (35) dishes.
One year before her cross-country journeys would end, Paddleford (36) that 150"ladies had gone traveling with their husbands" to the Hanson, Mass. , cranberry meeting. So she would not let the (37) pass to find "new ways to use the bouncy little berry."
(38) she had a "chat" with Mrs. Milton Reeves of New Lisbon, N. J. , who advised that fresh cranberries be (39) in the freezer for year-round use.
Then she spoke with Mrs. Thomas B. Darlington Jr. , who (40) her cranberry
