热门试题:
[简答题]带电作业需要（ ）或直流线路再启动功能的作
业和带电断、接引线应由值班调控人员履行许可手续。
[填空题]党的十一届三中全会后,我国农村改革一个人们未曾预料到的收获就是（ ）的异军突起。
[单项选择]
At some point during their education, biology students are told about a conversation in a pub that took place over 50 years ago. J. B. S. Haldane, a British geneticist, was asked whether he would lay down his life for his country. After doing a quick calculation on the back of a napkin, he said he would do so for two brothers or eight cousins. In other words, he would die to protect the equivalent of his genetic contribution to the next generation.
The theory of kin selection—the idea that animals can pass on their genes by helping their close relatives—is biology’s explanation for seemingly altruistic acts. An individual carrying genes that promote altruism might be expected to die younger than one with "selfish" genes, and thus to have a reduced contribution to the next generation’s genetic pool. But if the same individual acts altruistically to protect its relatives, genes for altruistic behavior might nevertheless propagate.
A
A. to honor his unusual altruistic acts.
B. to show how he contributed to his offspring.
C. to introduce the topic of human altruism.
D. to give an episode of his calculation abilities.
[单项选择]依据我国《物权法》的规定，下列不属于最高额抵押权所担保债权确定的事由的是：( )。
A. 约定的债权确定期间届满
B. 新的债权不可能发生
C. 债务人被勒令停业整顿
D. 抵押财产被扣押
[单选题]当采用扣件式钢管作立柱支撑时钢管规格、间距、扣件应符合设计要求。每根立柱底部应设置底座及垫板,垫板厚度不得小于( )mm.
A.20
B.30
C.40
D.50
[多项选择]下列对抗HCV描述正确的是（）。
A. 抗-HCV-IgM见于丙型肝炎急性期
B. 高效价的抗-HCV-IgG常提示HCV的现症感染
C. 抗-HCV是传染性的标记而不是保护性抗体
D. 抗-HCV-IgM治愈后可消失
E. 高效价的抗-HCV-IgG可见于丙型肝炎恢复期
[单选题]救援人员选择使用绳索开展高空救援时,应对绳索及附件进行安全检查,选择制作不少于( )个牢固的支点,绳索应避开墙角、烟火等高温、尖锐部位,制作绳结时必须经过安全员核查方可实施救助作业。
A.1
B.2
C.3
D.4
[判断题]在天然情况下,红松要50-60年才能开始结果。
A.正确
B.错误
[单选题]指点信标发射的电磁波主要靠（ ）方式传播。
A.A、天波
B.B、地波
C.C、直射波
D.D、散射传播
[单项选择]信息管理手册编制和修订的工作流程属于建设项目信息管理任务中哪方面环节的工作( )。
A. 编制建设项目信息管理手册
B. 明确建设项目管理班子中信息管理部门的任务
C. 编制和确定完成信息管理任务的工作流程
D. 建立建设项目信息中心
[单项选择]第48—50 题为套题：
2010 年，甲寿险公司的产品A 和产品B 的保费和现金流情况如表1 所示。评估寿险公司产品利润指标包括盈利能力和利润率等。
表1 2010 年产品A与产品B的保费与现金流情况表
产品名称 各保单年度净现金流现值（元） 首年标准保费（元） 保费现值（元）
产品A 400 1000 10000
产品B 2000 4000 30000产品B 的利润率为（ ）。
A. 6%
B. 4%
C. 6．67%
D. 50%
[单选题]对成人进行心脏按摩时,操作人员肘部要伸直,用身体的力量将患者胸部向下按压约（ ）厘米。
A.1～2
B.3～5
C.5～7
[单项选择]以下关于胰岛素说法错误的是( )
A. 抑制糖原的分解和异生
B. 促进脂肪合成，抑制其分解
C. 促进蛋白质合成，抑制其分解
D. 用于胰岛素依赖型糖尿病
E. 不能用于非胰岛素依赖型糖尿病
[判断题]中间加挂游车的跨装车组通过9号及其以下道岔时不得推送调车，遇设备条件不容许或尽头线，必须推进运行时，调车速度不得超过5km/h。
A.正确
B.错误
[单选题]氧气呼吸器连续( )个月没有使用的,清净罐内的二氧化碳吸收剂必须更换。
A.3
B.6
C.12
[单项选择]对阴道黏膜及创面进行冲洗消毒时，通常碘伏含有效碘为多少（）
A. 100㎎/L
B. 200㎎/L
C. 250㎎/L
D. 500㎎/L
[判断题] “wait for”的中文意思是“招待 ” ( )
A.正确
B.错误
[单选题]非检修人员( )进入“不上人屋面”。
A.允许
B.可以
C.禁止
[单项选择]当重力和重力臂一定时，力臂越长就越（）。
A. 省力
B. 费力
C. 省功
D. 费功
[不定项选择]建设项目环境风险评价事故风险源项泄漏液体的蒸发分为（），其蒸发总量为其蒸发之和。
A. 闪蒸蒸发
B. 热量蒸发
C. 压缩蒸发
D. 质量蒸发
[多选题]面颅骨包括
A.筛骨
B.上颌骨
C.枕骨
D.舌骨
E.颧骨
[单选题]When countries develop economically,people live longer lives.Development experts have long Delieved this is because having more money expands lifespan,but a massive new study suggests that education may play a bigger role.The finding has huge implications for public health spending.Back in 1975,economists plotted rising life expectancies against countries'wealth,and concluded that wealth itself increases longevity.It seemed self-evident:everything people need to be health from food to medical care--costs money But soon it emerged that the data didn't always fit that theory.Economic upturns didn’t always mean longer lives.In addition,for reasons that weren't clear,a given gain in gross domestic product（GDP）caused increasingly higher gains in life expectancy over time,as though it was becoming cheaper to add years of life.Me moreover,in the 1980s researchers found ga ins in literacy were associated with greater increases in life expectancy than gains in wealth were Finally,the more educated people in any country tend to live longer than their less educated compatriots.But such people also tend to be wealthier,so it has been difficult to untangle which factor is increasing lifespan Permanent change Wolfgang Lutz of the International Institute for Applied Systems Analysis in Vienna and colleagues have now done that by compiling average data on GDP per person,lifespans,and years of education from 174 countries,dating from 1970 to 2010 They found that,Just as in 1975,wealth correlated with longevity.But the correlation between longevity and years of schooling was closer,with a direct relationship that did not change over time way wealth does When the team put both these factors into the same mathematical model,they found that differences in education closely predicted differences in life expectancy,while changes in wealth barely mattered Lutz argues that because schooling happens many years before a person has attained their life expectancy,this correlation reflects cause:better education drives longer life.It also tends to lead to more wealh,which is why wealth and longevity are also correlated.But what is important,says Lutz,is that wealth does not seem to be driving longevity,as experts thought-in fact,education is driving both of them Lifestyle choices Some medical professionals may not like these findings,"says Lutz,as they suggest schools may be a better health investment than high-tech hospitals.But RudigerKrech at the World Health Organization welcomes the study."It confirms education as a major social determinant of health,"he says-aconcept WHO actively promotes.But if medical health experts welcome the findings,economists are less comfortable Sangheon Lee,at the UN International Labour Organisation in Geneva,Switzerland agrees education affects lifespan but doubts that simple models like Lutz's can fully resolve cause and effect."It's a very difficult econometric problem,"he says,with health,wealth and education all affecting each other But Lutz says that extreme examples are telling.Cuba is dead poor but has a higher life expectancy than the US because it is well educated.Meanwhile in oil-rich but poorly-educated Equatorial Guinea,people rarely reach 60
The case of Cuba in the last paragraph is used to
A.demonstrate that Cuba is a developing country with long life expectancy
B.show Cuba is a developing country and is often depicted as a very poor count
C.show that it ranks much better than most countries in Latin America in education
D.illustrate more education is what makes people live longer,not more money
[单项选择]我国婴儿代乳食品的黄曲霉毒素限量标准为（）。
A. ≤20μg/kg
B. ≤10μg/kg
C. ≤5μg/kg
D. ≤2μg/kg
E. 不得检出
[单项选择]确保设备配套投产正常运转的重要环节是在设备安装经检验合格后进行( )。
A. 整机检验
B. 性能检测
C. 试运转
D. 复验
[单选题]体育课上，学生们正跑 1000 米，此时他们体内以什么产热占极大比例（2.0分）
A.骨骼肌
B.脑
C.肝脏
D.皮肤
E.肾脏
[判断题]张某盗窃路面井盖（价值人民币400元）的行为，应当按盗窃予以治安管理处罚。
正确 错误
A.正确
B.错误
[单项选择]本地用户信息存储在本地计算机的账户管理数据库中，用户登录后______。
A. 只能根据权限访问整个域中的特定资源
B. 只能根据权限访问本地计算机某些目录中的内容
C. 只能根据权限访问本地计算机
D. 可以根据权限访问整个域中的资源
[单项选择] (44) 是项目管理方法中的一种“软工具”。
A. 项目管理软件
B. 成本财务编码
C. 持续改进的目标
D. 便利的沟通会议
[单选题]我 国能 源发展 的战略 （ ）。
A.节 约与开发并举，将节约放在首位
B.开 发为主，节约为辅
C.优化开发与重点开发并举，将优化开发放在首位
D.节约与开发并举 ，将开发放在首位
[多项选择]下列哪些不是外周血管阻力升高的原因（）
A. 心钠素分泌增多
B. 交感缩血管纤维兴奋
C. 交感胆碱能纤维兴奋
D. 心迷走神经兴奋
E. 血管紧张素Ⅱ增多
[单选题]某企业生产甲、乙两种产品，耗用直接原材料15万元，车间管理人员薪酬3万元，车间设备计提折旧9万元，各项生产费用按照工时在甲、乙之间分配，甲、乙耗费工时分别为100小时、50小时，则甲产品应分配的生产费用为（ ）万元。
A.4
B.8
C.9
D.18
[判断题]根据《人民币鉴别仪通用技术条件》(GB_16999-2010),B 级点验钞机纸币任意一面鉴别一次定为鉴别一次。( )
A.正确
B.错误
[单项选择]项目竣工报告由( )编制。
A. 咨询工程师
B. 项目业主
C. 监理工程师
D. 项目经理
