热门试题:
[单项选择]抽油机井的泵效是指抽油泵实际抽出的（）与理论排量之比。
A. 油量
B. 水量
C. 液量
D. 气量
[简答题]Today’s worker is no longer willing to work in an authoritarian and dehumanizing environment. Workers want meaning in their work and balance in their lives. They want opportunities to contribute and to know how their work is effective. Employees want to work for organizations that respect them as individuals. They also want to know that they are working for an ethical company that acts in a socially and environmentally responsible manner.
Today, and in the future, companies must design work so that employees can take responsibility and be rewarded appropriately. By changing altitudes, and conditions in the workplace, organizations can help make work more meaningful.
Repetitive factory routines and office work that simply moves paper from in-box to out-box are mindless task that destroy motivation and productivity. Research has shown that mental challenge is closely related to job satisfaction. Too little challenge in the work, as in completely automated tasks, generally leads
[单选题]普通活性污泥法的实际需氧量为( )。
A.BOD的氧化需氧量
B.活性污泥内源呼吸的硝化反应需氧量
C.曝气池出水带出的氧量
D.以上三项的和
[单项选择]Java API中支持线程的类或接口是( )。
Ⅰ．java.lang.Thread
Ⅱ．java.lang.Runnable
Ⅲ．java.lang.ThreadGroup
Ⅳ．java.io.Serializable
A. Ⅰ，Ⅱ
B. Ⅰ，Ⅱ，Ⅲ
C. Ⅰ，Ⅱ，Ⅳ
D. Ⅰ，Ⅱ，Ⅲ，Ⅳ
[单选题]全自动软化水装置是依据钠型阳离子交换树脂去除水中（），从而降低原水水质的硬度，达到水质软化的目的。
A.钠离子
B.阳离子
C.钙镁离子
D.阴离子
[单项选择]消费者的习惯性价格心理是（）
A. 周期性的
B. 阶段性的
C. 不易改变的
D. 不可改变的
[判断题]罗某与李某从四川到重庆打工，共同租住在出租屋内。一天罗某实施盗窃行为被公安机关处以行政拘留10日。由于人生地不熟，遂由李某来作罗某暂缓执行行政拘留的担保人。
A.正确
B.错误
[判断题]自轮运转特种设备调车作业，一批调车作业中需无动力临时停留车辆时，驻站联络员与车站值班员共同确定调车作业计划， 需实施防溜补强措施的线路，由车站值班员向司机和随车人员传达。
A.正确
B.错误
[单项选择]毒性最大的局麻药是
A. 普鲁卡因
B. 利多卡因
C. T卡因
D. 布比卡因
E. 依替卡因
[单选题] 患者女性,28岁。日晒后面部出现蝶形红斑,经诊断为系统性红斑狼疮。此患者为治疗红斑应使用(0分)
A.非甾体抗感染药
B.免疫抑制剂
C.抗疟药
D.大剂量静脉输注免疫球蛋白
E.肾上腺皮质激素
[判断题].2006年4月,甲将乙打伤,因伤情轻微,乙未到公安机关报案。2007年1月,甲和乙发生矛盾,乙遂到公安机关报案称2006年4月被甲打伤过。则公安机关应当依法对甲进行治安管理处罚。
A.正确
B.错误
[判断题]通风阻力包括摩擦阻力和局部阻力两大类，其中摩擦阻力是井巷通风阻力的主要组成部分，局部阻力无关紧要。()
A.正确
B.错误
[判断题]模板支撑应牢固并对称布置，高出坑口的加高立柱模板要有防止倾覆的措施。
A.正确
B.错误
[多选题]《铁路旅客运输办理细则》（铁运〔1997〕103号）规定，遗失物品中（）不办理转送。
A.国家禁止运输的物品
B.机要文件
C.鲜活易腐物品
D.危险品
[单项选择]
A. Suppose
B. To suppose
C. Being supposed
D. Supposed
[多选题] 按照导电沟道的不同,MOS 管可分为( )。
A.NMOS
B. PMOS
C.C.MOS
D.D.MOS
E.SMOS
[多选题]防御机制分为哪几大类
A.自恋型
B.不成熟型
C.神经症型
D.半成熟型
E.成熟性
[单选题]20元面额纸币弯曲挺度小于等于（ ）为不宜流通人民币。
A. A . 0.02；
B. B . 0.03；
C. C . 0.04；
[单项选择]网络122.21.136.0/22中最多可用的主机地址是（）
A. 1024
B. 1023
C. 1022
D. 1000
[单选题]抽油机井刹车行程的最佳范围是( )。
A.1/3-1/2
B.1/2-2/3
C.1/3-2/3
D.1/4-2/3
[多选题]开关柜安装,按照交接试验标准进行()等试验
A.机械特性测试、绝缘试验、工频耐压试验
B.继电保护装置整定试验
C.主回路电阻测量及接地电阻测量
D.断路器远方遥控试验以及遥信、遥测
[单项选择]An important new industry, oil refining, grew after the Civil War. (1) oil, or petroleum, a dark, thick ooze from the earth had been known for hundreds of years, (2) little use had ever (3) it. In the 1850’s, Samuel M. Kier, a manufacturer in western Pennsylvania, began (4) the oil and refining it into kerosene. Refining, (5) smelting, is a (6) of removing impurities from a raw material.
Kerosene was used to light lamps. It was a cheap (7) for whale oil, which was becoming (8) to get. Soon there was a large (9) for kerosene. People began to search for new (10) of petroleum.
The first oil well was drilled by E. L. Drake, a retired railroad conductor. In 1859 he began drilling in Titusville, Pennsylvania. The (11) venture of drilling seemed so (12) and foolish that onlookers called it "Drake’s Folly". But (13) he had drilled down about 70 feet (21 meters),
A. all
B. complete
C. whole
D. total
[单项选择]（2007年）
下列哪一种情况下，善意第三人不能依据善意取得制度取得相应物权？
A. 保留所有权的动产买卖中，尚未付清全部价款的买方将其占有的标的物卖给不知情的第三人
B. 电脑的承租人将其租赁的电脑向不知情的债权人设定质权
C. 动产质权人擅自将质物转质于不知情的第三人
D. 受托代为转交某一物品的人将该物品赠与不知情的第三人
[单选题]飞行中如两部LGCIU故障，对于机组接通机翼防冰，描述错误的是？
A.起落架在放下位时机翼防冰电门将点亮并将仅加温30S
B.无论起落架处于什么形态，机翼防冰电门将点亮并将仅加
温30S
C.这种机翼防冰失效不会产生ECAM/声响警告
[多选题] 新时期好干部标准( )、清正廉洁。
A.信念坚定
B.为民服务
C.勤政务实
D.勇于担当
[单项选择]影响药物代谢的中西药联用药组是（）
A. 红灵散与庆大霉素
B. 牛黄解毒片与红霉素
C. 女金丹与诺氟沙星
D. 逍遥散与三唑仑
E. 千柏鼻炎片与呋喃唑酮
[单选题]B-C-1.B-001 3
西门子轨旁WCU_ATP和联锁之间的接口是一个基于元件(例如信号机、道岔、岔心、轨道区段、轨道空闲检测区段)及相关状态的功能接口。它是一个( )接口。
A.双向
B.单向
C.冗余
D.备用
[单项选择]原子吸收分光光度法测定钾时，加入质量分数为1%铯盐的作用是( )。
A. 减少钾的电离
B. 减少背景吸收
C. 提高火焰温度
D. 提高钾的浓度
[填空题]发电机机座的作用主要是用于支撑和________ 铁芯、绕组等部件。____
[填空题]Jackson方法是一种面向 【3】 的结构化方法。
[单选题]FCOM11130当输入最大假设温度后，FMC会将N1限制至起飞推力减少量
A.20%
B.25%
C.30%
D.35%
[多选题]下列（ ）项可影响尘肺病的发生
A.粉尘成分
B.粉尘浓度
C.接触矿尘时间
D.身体强弱
E.略
F.略
[单选题]【单选题】MED属性AS之间传递,收到此属性的AS一方会再将其通告给任何其他第三方AS。
A.正确
B.错误
[单选题]TFDS动态检车员必须具有从事列车作业检查（ ）及以上工作经验,熟练掌握车辆结构，熟知车辆配件名称。
A.1年
B.2年
C.5年
D.10年
[单选题](0.5分)
手术区域备皮剃毛最佳的时机是
A.手术前三天进行
B.手术前二天进行
C.手术前一天进行
D.手术开始前进行
E.其他都可以
[单项选择]电气设备的避雷器是防止( )危险的防雷装置。
A. 直击雷
B. 静电感应雷
C. 电磁感应雷
D. 雷电波入侵
[简答题]试简述三相半控桥式整流电路与三相全控桥式整流电路的特点。
[单项选择]It was Monday. Mrs. Smith’s dog was (1) , but there was no meat in the house. Thinking that there was no (2) way, Mrs. Smith took a piece of paper, and wrote the following words on it: "Give my dog half a pound of meat." Then she gave the paper to her dog and said, " (3) this to the butcher, and he’s going to give you your lunch today." (4) the piece of paper in its mouth, the dog ran to the butcher’s shop. It gave the paper to the butcher. The butcher read it (5) , and recognized that it was (6) Mrs. Smith’s handwriting. So he did (7) he was asked to. The dog was very happy, and ate the meat up at once.A. Take B. Bring C. Get
