热门试题:
[单选题] 线路损失率即为线路损失电量占()的百分比
A. 供电量
B. 售电量
C. 设备容量
D. 用电量
[单项选择]车辆外廓至220kV无遮栏带电部分之间的安全距离为()。
A. 4.55m
B. 3.55m
C. 2.55m
[判断题]凡正式报到的员工,试用期满后,由于个人原因尚未参加新员工培训的,或培训考核不合格者,不得转为正式员工。( )
A.正确
B.错误
[简答题]影响汽轮机运行安全经济性的内部动静间隙有哪些?如何合理确定这些间隙?
[简答题]葡萄牙语是哪个南美洲大国的第一官方语言?
[多选题]防治尘毒危害的措施组织管理有( )。
A.加强领导;
B.加强宣传教育 ;
C.建立健全职业危害治理规章制度;
D.开展经常性的防尘防毒检查
[判断题]《起重机设计规范》 (GB/T 3811- 2008)规定,电动机应具有一种或-种以上的保护功能,对瞬动或反时限动作的过电流保护,其瞬时动作电流整定值应约为电动机最大起动电流的1.1倍。
A.正确
B.错误
[判断题]利用互联网传播已经成为计算机病毒传播的主要途径。
A.正确
B.错误
[判断题]钳形电流表,不用串联在被测电路中,就能测量电流( )
A.正确
B.错误
[单选题]线路动态评定标准每千米线路总扣分在50分及以内应评为( )。
A.优良
B.合格
C.不合格
D.失格
[判断题]可动心轨一动和二动控板及其与心轨的联结螺栓、钢岔枕与钢轨间的联结螺栓由工务部门负责。( )
A.正确
B.错误
[不定项选择题]共用题干
Mt. Desert Island
The coast of the State of Maine is one of the most irregular in the world.A straight line running from the
southernmost coastal city to the northernmost coastal city would measure about 225 miles.If you followed the
coastline between these points,you would travel more than ten times as far. This irregularity is the result of
what is called a drowned coastline._________(46)At that time,the whole area that is now Maine was part
of a mountain range that towered above the sea. As the glacier(冰川)descended , however , it expended
enormous force on those mountains,and they sank into the sea.
As the mountains sank,ocean water charged over the lowest parts of the remaining land,forming a series
of twisting inlets and lagoons(咸水湖).The highest parts of the former mountain range , nearest the shore,
remained as islands.________(47)Maine fossils found here were 225 feet above sea level,indicating the
level of the shoreline prior to the glacier.
The 2,500-mile-long rocky coastline of Maine keeps watch over nearly two thousand islands. Many of
these islands are tiny and uninhabited,but many are home to thriving communities.Mt. Desert Island is one
of the largest,most beautiful of the Maine coast islands.Measuring 16 miles by 12 miles,Mt. Desert was es-
sentially formed as two distinct islands._______(48)
For years,Mt. Desert Island,particularly its major settlement,Bar Harbor,afforded summer homes for the
wealthy.Recently though,Bar Harbor has become a rapidly growing arts community as well.But,the best part
of the island is the unspoiled forest land known as Acadia National Park.Because the island sits on the
boundary line between the temperate(温带)and sub-Arctic zones,the island supports the plants and ani-
mals of both zones as well as beach , inland , and alpine(高山的)plants. _________( 49 ) The establish-
ment of Acadia National Park in 1916 means that this natural reserve will be perpetually available to all
people,not just the wealthy.Visitors to Acadia may receive nature instruction from the park naturalists as well
as enjoy camping,cycling,and boating.Or they may choose to spend time at the archeological museum,
learning about the Stone Age inhabitants of the island.
The best view on Mt.Desert Island is from the top of Cadillac Mountain._________(50)From the
summit,you can gaze back toward the mainland or out over the Atlantic Ocean and contemplate the beauty
created by a retreating glacier.
_________(49)
A.This mountain rises 1,532 feet,making it the highest mountain on the Atlantic seaboard.
B.It is split almost in half by Somes Sound,a deep and narrow stretch of water,seven miles long.
C.It also lies in a major bird migration lane and is a resting spot for many birds.
D.The term comes from the activity of the ice age.
E.Mt.Desert Island is one of the most famous of all the islands left behind by the glacier.
F.The wealthy residents of Mt.Desert Island selfishly kept it to themselves.
[单选题]擅自错办通过或错误通过时,依据运营安全事报告及调查处理实施细则可判定为( )。
A.A、一般A类事故
B.B、一般B类事故
C.C、一般C类事故
D.D、一般D类事故
E.E、一般E类事故
[判断题]上级公安机关可以通过检查、审查、调查等监督形式对公安执法行为进行监督。 ( )
[简答题]东吴孙氏的后代,有一个策封为长沙桓王,他的名字是什么?
[单选题]快递网点发生电动自行车火灾后,主要致死致伤风险是( )。
A.消防设置不足
B.违规三合一
C.可燃物多
D.人员聚集
[单项选择]人身保险新型产品信息披露是指保险公司及保险公司代理人向投保人、被保险人、受益人及社会公众描述人身保险新型产品的特性、演示保单利益测算以及介绍经营成果等相关信息的行为。信息披露方式主要包括:媒体、公司网站,产品说明会,销售人员的说明和介绍,客户服务人员的回访,定期寄送的报告资料。由于分红保险产品的红利的不确定性,分红保险产品的信息披露管理显得尤为重要。为此,中国保监会2009年下发了《人身保险新型产品信息披露管理办法》(保监会令〔2009〕年第3号),对分红保险等新型产品的信息披露进行了明确要求。根据《人身保险新型产品信息披露管理办法》文件规定,以表格形式演示分红保险各保单年度末的保单利益,表格中至少应当包括以下要素():①各年度保险费及累计保险费;②满期给付、身故给付、退保金等保证利益;③当年度红利、累积红利等非保证利益;④产品基本特点。
A. ①②
B. ①②③
C. ②③④
D. ①②③④
[单选题]水环泵里的叶轮属于( )形式的。
A.开式叶轮
B.半开式叶轮
C.闭式叶轮
[判断题]当飞机与飞机之间的水平和垂直间距同时小于参数值时,系统发出冲突告警;否则如果在规定的提前告警时间内将要同时小于参数值时,系统发出冲突预警。( )
A.正确
B.错误
[单选题]JL02GG001413.反映电能表灵敏度的重要指标是( )。
A. 标定电流
B. 准确度等级
C. 起动电流
D. 最大额定电流
[填空题]在线路允许速度160km/h<υmax正线上,道岔轨道静态几何尺寸容许偏差管理值中,水平的临时补修标准为( )mm。
[单选题]着工装乘车期间,下面行为错误的是()。
A.主动向乘客让行
B.主动向乘客让座
C.对乘客询问不理
D.主动帮助有困难的乘客
[多项选择]关于第二信使,下述哪些是正确的()
A. 全麻药对细胞内静息Ca2+无影响
B. 临床浓度全麻药明显抑制蛋白激酶C的活性
C. 临床浓度全麻药明显减少脑内IP3含量
D. 全麻药可使脑内cGMP减少
E. 抑制第二信使系统是全麻药重要作用机制之一
[单选题]父母或者其他监护人应当尊重未成年人接受教育的权利,必须使适龄未成年人按照规定接受( ),不得使在校接受义务教育的未成年人辍学。
A.非义务教育
B.初中教育
C.义务教育
D.小学教育
[单项选择]以下关于结构化分析及建模方法的主要优点说法错误的是______。
A. 不过早陷入具体的细节
B. 从局部入手分析问题,如系统及子系统的关系
C. 图像化建模方法方便系统分析员理解和描述系统
D. 模型对象不涉及太多技术术语,便于用户理解模型
[简答题]社会体育活动常见的仪式礼节的主要有哪些?
[单项选择]将十进制数215转换成二进制数是
A. 11010111
B. 11101010
C. 1101011
D. 11010110
[单项选择]具有轻微兴奋子宫作用的药物是:
A. 糖皮质激素
B. 加压素
C. 孕激素
D. 甲状腺素
E. 雌激素
[单项选择]关于措施项目费的构成,下列描述中错误的是( )。
A. 投标人应根据措施项目清单中列示的项目名称和工程量计算措施项目费
B. 措施项目费均为合价
C. 措施项目费由人工费、材料费、机械费、管理费、利润等组成,并考虑风险费用
D. 措施项目费用与实际完成的实体工程量的大小关系不大
[单选题]在高压设备上工作,应至少由两人进行,并完成保证安全的()。
A.技术措施和应急措施
B.
组织措施和现场措施
C.
组织措施和技术措施
D.
应急措施和现场措施
[单项选择]下列选项中,不会造成电脱盐油水分离不好的因素有()。
A. 原油变轻
B. 脱盐温度太高
C. 混合强度过低
D. 加工量过大
[单项选择]
The human Y chromosome—the DNA chunk that makes a man a man—has lost so many genes over evolutionary time that some scientists have suspected it might disappear in 10 million years. But a new study says it’ll stick around.
Researchers found no sign of gene loss over the past 6 million years, suggesting the chromosome is "doing a pretty good job of maintaining itself," said researcher David Page of the Whitehead Institute for Biomedical Research in Cambridge, Mass.
That agrees with prior mathematical calculations that suggested the rate of gene loss would slow as the chromosome evolved, Page and study co-authors note in Thursday’s issue of the journal Nature. And, they say, it clashes with what Page called the "imminent demise" idea that says the Y chromosome is doomed to extinction.
The Y appeared 300 million years ago and has since eroded into a dinky chromosome, because it lacks the mechanism other chromosomes
A. the human Y chromosome has stopped evolution.
B. a man will no longer be a man in 10 million years.
C. scientists are divided on the latest issue of Y chromosome.
D. mathematical calculations are important in genetic studies.
[单选题]护轨与基本轨头部间净距在钢梁明桥面上,其净距为220mm,允许误差为( )。
A.±2mm
B.±3mm
C.±5mm
D.±10mm
[单项选择]男,38岁。高处坠落伤后咯血、呼吸困难1天入院。体检:胸壁压痛,可扪及皮下气肿,右肺呼吸音消失,左肺呼吸音减弱。胸片示右肺不张,右肺门旁垂肺征。应考虑下列哪项诊断()
A. 张力性气胸
B. 支气管断裂
C. 血气胸
D. 支气管裂伤
E. 闭合性气胸
[单项选择]应急机制始终贯穿于应急准备、初级反应、扩大应急和应急恢复等应急活动中,涉及应急救援的运行机制众多,但关键的、最主要的是()。
A. 统一指挥、分级响应、属地为主、公众动员
B. 有令则行、有禁则止、统一号令、步调一致
C. 行政管理、信息管理、预案管理、培训演练
D. 组织体系、运作机制、法制基础、保障系统
[单项选择]某企业从银行取得借款500万元,期限1年,利率10%,若分别按贴现法和加息法支付利息,该项借款的实际年利率分别为( )。
A. 9.46%、15%
B. 11.11%、12.35%
C. 11.11%、20%
D. 10%、20%