热门试题:
[填空题]胶带运输机的螺旋拉紧装置的拉紧行程较短,同时又不能自动保持恒张力,一般适用于距离小于()m、功率小的输送机。
[单项选择]在其他情况相同的条件下,商业银行减少贷款、增加债券投资,能有效( )。
A. 提高银行资产的流动性
B. 降低银行资产组合的风险
C. 提高银行资产组合的信誉水平
D. 提高银行资产组合的收益率
[单选题]正线中断行车30分钟及以上属于( )。
A.重大事故
B.大事故
C.险性事故
D.一般事故
[单选题] 项目管理组织的管理者直接领导的下级人员的数量称为( )
A.管理幅度
B.管理职能
C.管理尺度
D.管理程序
[单选题]依据《安全生产法》的规定,对事故隐患或者安全生产违法行为,任何单位或者个人 ( )。
A.必须向各级人民政府报告或者举报
B.必须向生产经营单位安全管理部门报告或者举
C.有权向负有安全生产监督管理职责的部门报告或者举
[单项选择]1929 年,( )确定了星系红移和距离之间的线性关系,证实了宇宙膨胀的理论。
A. 爱因斯坦
B. 费米
C. 哈勃
D. 费里德曼
[填空题]
Glass, in one form or another, has long been in noble service to humans. As one of the most widely used of manufactured materials, and certainly the most versatile, it can be as imposing as a telescope mirror the width of a tennis court or as small and simple as a marble rolling across dirt.
41. ______
The uses of this adaptable material have been broadened dramatically by new technologies: glass fiber optics—more than eight million miles—carrying telephone and television signals across nations; glass ceramics serving as the nose cones of missiles and as crowns for teeth; tiny glass beads taking radiation doses inside the body to specific organs; even a new type of glass fashioned of nuclear waste in order to dispose of that unwanted material.
42. ______
On the horizon are optical computers. These could store programs and process information by means of light—pulses from tiny lasers—rather than electrons. And the pulses woul
[单选题]油压式千斤顶的安全栓有损坏、螺旋式千斤顶或齿条式千斤顶的螺纹或齿条的磨损量达( )时,禁止使用。
A.0.14
B.0.16
C.0.18
D.0.2
[判断题]信号机基础须稳固,机柱正直,倾斜不大于36mm(应在轨面以上5500mm处测得).
A.正确
B.错误
[单项选择]某建设项目达到设计生产能力后,全厂定员1000人,工资和福利费按每人每年20000元估算。每年的其他费用为1000万元,其中其他制造费600万元,现金的周转次数为每年10次。流动资金估算中应收账款估算额为2000万,应付账款估算额为1500万元,存货估算额为6000万元,则该项目流动资金估算额为( )万元。
A. 6800
B. 6700
C. 9800
D. 9760
[单项选择]When it comes to the slowing economy, Ellen Spero isn’’ t biting her nails just yet. But the 47- year-old manicurist isn’’ t cutting, filing or polishing as many nails as she’’ d like to, either. Most of her clients spend $12 to $50 weekly, but last month two longtime customers suddenly stopped showing up. Spero blames the softening economy. "I’’ m a good economic indicator," she says. "I provide a service that people can do without when they’’ re concerned about saving some dollars." So Spero is downscaling, shopping at middle-brow Dillard’’ s department store near her suburban Cleveland home, instead of Neiman Marcus. "I don’’ t know if other clients are going to abandon me, too," she says.
Even before Alan Greenspan’’ s admission that America’’ s red-hot economy is cooling, lots of working folks had already seen signs of the slowdown themselves. From car dealerships to Gap outlets, sales have been lagging for months as shoppers temper their spending. For retailers, who last yea
A. To which of the following is the author likely to agree
B. Tighten the belt, the single remedy.
C. Caution all right, panic not.
D. The more ventures, the more chances.
[单选题]初产妇,25岁,妊娠42周,宫高32cm,胎动、胎心音及骨盆正常,无需作下列哪项检查?
A.B超检查
B.胎盘功能检查
C.羊膜镜检查
D.X线骨盆测量
[单选题]摩法的主要作用之一为( )。
A.引邪击经
B.清热止痛
C.消积导滞
D.调整脏腑
[多选题]计算机联锁系统电源I级测试包括( )。
A.采集电源
B.驱动电源
C.系统电源
D.输入电压、UPS输出电压和接地电压
[填空题]根据课程的组织核心,可以将课程分为学科课程、活动课程和()。
[单项选择]缺铁性贫血患者的实验室检查是
A. 血清铁降低,总铁结合力降低
B. 血清铁降低,总铁结合力正常
C. 血清铁正常,总铁结合力降低
D. 血清铁降低,总铁结合力增高
E. 以上皆不是
[单项选择]
{{B}}Section A{{/B}}
{{B}}Directions:{{/B}} In this section, you
will hear 8 short conversations and 2 long conversations. At the end of each
conversation, one or more questions will be asked about what was said. Both the
conversation and the questions will be spoken only once. After each question
there will be a pause. During the pause, you must read the four choices marked
[A], [B], [C] and [D], and decide which is the best answer. Then mark the
corresponding letter on Answer Sheet 2 with a single line through the
centre.
A. She will get married with the man.
B. She has got married for about six months.
C. She has decided to marry in June.
D. She will get married this winter.
[判断题]输入到天线上的功率与天线辐射到外部空间的功率之比称为天线效率。
[单项选择]菌痢急性期的基本病变是:()
A. 全身小血管内皮细胞肿胀,血浆渗出
B. 肠粘膜弥漫性纤维蛋白渗出性炎症
C. 肠粘膜水肿、增厚、溃疡形成
D. 肠壁形成口小底大的烧瓶样溃疡
E. 嗜酸性肉芽肿的形成
[单项选择]男,55岁。5年前因胃癌行全胃切除术,近1年渐感头昏、乏力,活动后心慌、气急。红细胞数1.5×1012/L,血红蛋白55g/L,白细胞数3.2×9/L,血小板65×9/L,网织红细胞0.001(0.10%)。MCV129fl,MCH36pg,MCHC34%。最可能诊断的是()
A. 缺铁性贫血
B. 再生障碍性贫血
C. 巨幼细胞性贫血
D. 溶血性贫血
E. 骨髓病性贫血
[判断题](61262)( )设备的直流耐压试验和交流耐压试验,这两种试验可以互相代替,应用于预防性试验中。( )(2.0分)
A.正确
B.错误
[单选题] 下列选项中,不属于热管式换热器特点的是( )。
A.结构简单.紧凑
B.使用第三种传热介质进行热量传递
C.管束损坏不会造成换热器泄漏
D.传热系数比常规换热器更高
[多选题]两位分析人员对同一含铁的样品用分光光度法进行分析,得到两组分析分析数据,要判断两组分析的精密度有无显著性差异,应该选用( )
A.Q检验法
B.t检验法
C.F检验法
D.Q和t联合检验法
[判断题]职工在生产过程中因违反安全操作规程发生伤亡事故,不属工伤事故。
A.正确
B.错误
[单项选择]行政许可的实施机关可以对已设定的行政许可的实施情况及( )适时进行评价,并将意见报告该行政许可的设定机关。
A. 项目的可行性
B. 推行的重要性
C. 存在的必要性
D. 设置的合理性
[判断题]开采煤炭资源必须符合煤矿开采规程,遵守合理的开采顺序,达到规定的煤炭资源回采率。()
A.正确
B.错误
[简答题]为什么从中蒙边界到我国东北地区和长江中下游地区是温带气旋发生发展及活动的频繁区?
[判断题] 柑橘发生芽变的频率是非常低的,仅为千万分之一。( )
A.正确
B.错误
[单选题]熄灭直流电弧,常采用的途径是( )。
A.使电弧拉长和强冷的方法
B.使电弧扩散
C.复合
D.窄缝灭弧
[单选题]携带式电气设备的接地线应采用软铜绞线,其截面不小于(____)平方毫米。
A.0.5
B.1
C.1.5
D.2
[单选题]内悬浮抱杆组塔现场各地锚坑的挖设,必须按照施工方案规定的深度开挖,地锚必须有马道,马道的方向与受力方向相同,马道与地面的水平夹角应不大于( )。
A.30度
B.45度
C.60度
D.70度
[单项选择]粮堆()愈大,储粮愈容易发生结露。
A. 温度
B. 温差
C. 压力差
D. 表面张力
[判断题]值班调度员及运行、操作、检修人员在进行业务工作联系时,必须互报单位和姓名。
A.正确
B.错误
[多选题]CRH380B型动车组列车( )车防火门为电控电动结构,同时兼有内端门功能,在断电状态下具有自动关闭功能。
A.1
B.4
C.5
D.6
[判断题]提高流压可使油井日产量增加。 ( )
A.正确
B.错误
[判断题]( )20 世纪 30年代,开始使用三轴稳定的飞控系统,用于保持无人机平直飞行。
A.正确
B.错误
[单选题]题目的覆盖面问题主要体现在( B )(2.0分)
A.看题目的标准化
B.看所出试题是否具有代表性
C.看题目的公平性
D.看题目的正确性
[单选题]救生员做头锁法双手掌放在溺水者头两侧,拇指轻按_ ,食、中指按面颊,无名指和小指放在耳下,但不要超过耳垂。
A.眉弓
B.眉骨
C.泪骨
D.前额