【单选题】
(B737ng)增压系统安全释压活门的作用是___
A. 正常释压
B. 负压释压
C. 压力过大时释压
D. 压力过小时释压
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答案
C
解析
暂无解析
相关试题
【单选题】
(B737ng)增压系统的方式选择电门是位电门从中可知道增压系统的操作方式的种类 ___
A. 二
B. 三
C. 四
D. 五
【单选题】
(B737ng)主热交换器的作用是 ___
A. 在发动机引气进入空气循环机的涡轮之前对之进行冷却
B. 在发动机风扇空气进入空气循环机的涡轮之前对之进行加热
C. 在发动机引气进入空气循环机的压缩机之前对之进行冷却
D. 在发动机引气进入水分离器的涡轮之前对之进行冷却
【单选题】
(B737ng)“AUTO FAIL”(自动位失效)灯何时点亮 ___
A. A. 当座舱压差超过7.8psi
B. B. 地面状态,P5板上方式选择电门在“CHECK”位,空/地电门在空中位
C. C. 当自动方式控制电路停止工作转换到备用方式后
D. D. 以上答案都不对
【单选题】
(B737ng)737-700当温度控制系统在AUT0位时,客舱和驾驶舱空气温度限定: ___
A. 160F(71.1 C)
B. 150F(65.5C)
C. 140F(60.0C)
D. 130F(54.4C)
【单选题】
(B737ng)737-700驾驶舱内温度控制面板上的DUCK OVERHEAT灯,相当于737-800温度控制面板的什么灯___
A. 没区别
B. DUCK TEMP
C. ZONE TEMP
D. ZONE OVERHEAT
【单选题】
(B737ng)737-700空调组件出口不会结冰是由于有___
A. 空气循环机(ACM)
B. 备用温度控制活门
C. 水分离器
D. 35 F控制装置
【单选题】
(B737ng)737-700控制客舱温度高低的最终执行部件是___
A. 混和活门(mix)
B. 掺混活门(trim)
C. 流量控制活门
D. 组件活门
【单选题】
(B737ng)737-800空调组件出口不会结冰是由于有___
A. 空气循环机(ACM)
B. 备用温度控制活门
C. 水分离器
D. 35 F控制装置
【单选题】
(B737ng)737-800控制客舱温度高低的最终执行部件是___
A. 混和活门(mix)
B. 掺混活门(trim)
C. 流量控制活门
D. 组件活门
【单选题】
(B737ng)737NG,下列那个部件可以对空调系统防潮___
A. 水分离气
B. 再加热器,冷凝器
C. 都是
D. 都不是
【单选题】
(B737ng)737NG空调组件过热保护自动关断的原因可以是___
A. 空气循环机(ACM)的压缩机出口过热390F
B. 空气循环机(ACM)的涡轮进口过热电门210F
C. 空调组件出口过热电门250F
D. 以上都是
【单选题】
(B737ng)737NG设备冷却的OEV的中文全称是___
A. 过压电子活门
B. 外部电子活门
C. 过压排气活门
D. 外部排气活门
【单选题】
(B737ng)737NG设备冷却的OEV清除烟雾模式发生在:___
A. 组件电门在AUTO位,设备冷却风扇是工作的
B. 再循环风扇电门在AUTO位
C. 任一组件电门在HIGH位,右再循环风扇电门在OFF位,飞机在空中
D. 设备冷却系统探测到烟雾
【单选题】
(B737ng)737NG设备冷却的OEV清除烟雾模式何时发生___
A. 任一组件电门在HIGH位,右再循环风扇电门在OFF位,飞机在空中
B. 设备冷却系统探测到烟雾
C. 组件电门在AUTO位,设备冷却风扇是工作的
D. 再循环风扇电门在AUTO位
【单选题】
(B737ng)737NG设备冷却的设备冷却风扇和737-3/4/5不同在于___
A. 737NG的供气和排气风扇件号一样,可以互换
B. 737NG的供气风扇安装位置不同
C. 737NG的排气风扇安装位置不同
D. 以上都对
【单选题】
(B737ng)737NG设备冷却的设备冷却风扇要拆主电子舱地板接近的是___
A. 供气风扇
B. 排气风扇
C. 都需要
D. 都不需要
【单选题】
(B737ng)737NG设备冷却的设备冷却风扇装在___
A. 主电子舱内
B. 前电子舱内
C. 前货舱右前壁板内
D. B&C
【单选题】
(B737ng)737NG增压高度警告电门装在___
A. 前客舱顶板
B. 主电子舱
C. 中客舱顶板
D. 前电子舱
【单选题】
(B737ng)ACAU空调附件控制盒的作用是___
A. 控制增压
B. 控制加温
C. 是飞机操作逻辑和空气系统的接口
D. 是飞机增压逻辑和气源的接口
【单选题】
(B737ng)B-737的设备冷却测试中要检查多少个冷气出口的流量?___
A. 16
B. 17
C. 18
D. 19
【单选题】
(B737ng)备用方式控制座舱压力时,哪条是错误的___
A. A. 感受大气数据计算机信号
B. B. 变化率自动控制在小于或等于 500英尺/分
C. C. 落地后座舱高度低于跑道200英尺是人工调整的
D. D. 后外流活门是直流电机控制的
【单选题】
(B737ng)不是设备冷却OEV工作模式的是___
A. 超控模式
B. 正常模式
C. 除烟模式
D. 高流量模式
【单选题】
(B737ng)当进行增压的“自动”计划时,计划的确定只与下列哪条有关___
A. A. 当前座舱高度数据
B. B. 飞行巡航高度数据
C. C. 着陆机场高度数据
D. D. F L T/G R D(飞行/地面)电门
【单选题】
(B737ng)二级热交换器的作用是 ___
A. 在发动机引气进入空气循环机的涡轮之前对之进行冷却
B. 在发动机风扇空气进入空气循环机的涡轮之前对之进行加热
C. 在发动机引气进入空气循环机的压缩机之前对之进行冷却
D. 在发动机引气进入水分离器的涡轮之前对之进行冷却
【单选题】
(B737ng)关于驾驶舱空调空气分配系统中风挡及驾驶员脚部空气外流活门B737各系列工作原理说法正确的是___
A. 737-345和737NG一样
B. 737-345和737-700一样,但和737-800不同
C. 737-345和737-800一样,但和737-700不同
D. 737-345和737NG不一样
【单选题】
(B737ng)关于前外流活门哪条是错误的:___
A. A. 再循环风扇工作,前放气活门一定关闭
B. B. 再循环风扇工作,前放气活门不一定打开
C. C. 后外流门全开,前外流门一定打开
D. D. 后外流门全关,前外流门一定关闭
【单选题】
(B737ng)关于座舱高度的说法正确的是 ___
A. A. 飞机在地面不增压时,座舱高度与飞行高度不在同一个海拔高度
B. B. 飞机在巡航时,座跄高度低于飞行高度.
C. C. 飞机在巡航时,座舱高度高于飞行高度.
D. D. 以上都不正确.
【单选题】
(B737ng)驾驶仓的掺混空气可以来自;___
A. 空调混合室
B. 右空调组件
C. 左空调组件
D. 以上都对
【单选题】
(B737ng)空调ACM在制冷过程中收集的水分通过喷嘴排放到哪里___
A. 充压进气管道
B. 主热交换器
C. 涡轮
D. 压气机
【单选题】
(B737ng)空调温度控制系统中,哪一个控制盒只有737-800有,而737-700没有___
A. 组件/区域温度控制器
B. ACAU(空调附件控制盒)
C. 客舱温度控制器
D. 以上都对
【单选题】
(B737ng)空气循环机(即压缩机与涡轮的组合)的作用是 ___
A. A. 为空调系统冷却引气
B. B. 为空调系统调节引气
C. C. 为客舱增压系统压缩引气
D. D. 除空调系统中水分
【单选题】
(B737ng)空气循环机包括___
A. 压气机和热交换器
B. 冷凝器和热交换器
C. 压气机和冷却涡轮
D. 涡轮和涡轮风扇
【单选题】
(B737ng)空气循环机的滑油量少于满油量的时需加滑油 ___
A. A.1/4
B. B.1/2
C. C.3/4
D. D.5/8
【单选题】
(B737ng)空气循环机压缩机出口过热电门过热温度设定在___
A. 425 F
B. 390 F
C. 490 F
D. 250 F
【单选题】
(B737ng)空中飞行时热交换器的冷气流来自___
A. 冲压空气
B. 涡轮风扇引入的冷空气
C. 再循环风扇引入的冷空气
D. 发动机压气机的冷空气
【单选题】
(B737ng)如果空调自动控制失效,驾驶员可以通过P5板人工控制各区域温度的B737机型是___
A. 737-300/500
B. 737-700
C. 737-800
D. A&B
【单选题】
(B737ng)设备冷却系统中的低流量探测器探测到什么情况会发出警告:___
A. 设备冷却空气的流量过低
B. 设备冷却空气温度过高
C. 设备冷却空气温度过低
D. A OR B
【单选题】
(B737ng)水分离器的作用是 ___
A. 在进入涡轮前去除空气里的水分
B. 在空调系统中增加空气的水分含量
C. 在空调系统中增加水里的空气
D. 在空调系统的空气中去除多余的湿气
【单选题】
(B737ng)所谓非计划下降指的是___
A. 进入不正确的下降程序
B. 指飞机没有上升到飞行员认可的高度就下降
C. 飞行员选择的程序与正常的程序不同步
D. 指飞机没有进入等压程序就下降
【单选题】
(B737ng)下列关于压力控制器的说法正确的是 ___
A. A. 在地面状态,压力控制器不控制座跄高度.
B. B. 空中和地面状态,压力控制器都控制座舱高度.
C. C. AUTO FAIL(自动失效)灯亮表明,压力控制器故障,需转换到备用方式.
D. D. 拆下压力控制器,仍可用人工方式控制座舱压力.
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【单选题】
“割下来的手就不再是人手”这句话体现了___
A. 形而上学片面的、孤立的观点
B. 辩证法普遍联系的观点
C. 唯心主义的观点
D. 诡辩论的观点
【单选题】
唯物辩证法认为发展的实质是___
A. 事物数量的增加
B. 事物根本性质的变化
C. 事物的一切运动变化
D. 新事物的产生和旧事物的灭亡
【单选题】
区分新事物和旧事物的标志在于看它们___
A. 是不是在新的历史条件下出现的
B. 是不是符合事物发展规律、有强大生命力
C. 是不是具有新形式和新特点
D. 是不是得到绝大多数人的承认
【单选题】
质量互变规律揭示了___
A. 事物发展的动力和源泉
B. 事物发展的状态和过程
C. 事物发展的方向和道路
D. 事物发展的两种趋势
【单选题】
质和事物的存在是___
A. 相互对立的
B. 相互包含的
C. 直接同一的
D. 相互转化的
【单选题】
在实际工作中,要注意掌握分寸,防止“过”或“不及”,其关键在于___
A. 抓住事物的主要矛盾
B. 确定事物的质
C. 认识事物的量
D. 把握事物的度
【单选题】
区分量变和质变的根本标志是看___
A. 事物的变化是否显著
B. 事物的变化是否迅速
C. 事物的某些属性是否发生了变化
D. 事物的变化是否超出度的范围
【单选题】
量变的复杂性是指___
A. 量变的程度发展不同
B. 量变形式的多样性和总的量变过程中有部分质变
C. 质变中有量的扩张
D. 量变有在度的范围内的变化和突破度的范围的变化
【单选题】
量变中的阶段性部分质变表现了___
A. 事物内部各部分之间变化的不平衡性
B. 事物整体与某些构成部分之间变化的不平衡性
C. 事物与事物之间变化的不平衡性
D. 事物的本质属性与非本质属性之间变化的不平衡性
【单选题】
量变中的局部性部分质变是___
A. 事物的本质属性与非本质属性之间变化不平衡性的表现
B. 事物的各个部分之间变化不平衡性的表现
C. 事物的内部矛盾和外部条件变化不平衡性的表现
D. 事物的量和质变化不平衡性的表现
【单选题】
揭示事物发展的趋势和道路的规律是___
A. 对立统一规律
B. 质量互变规律
C. 否定之否定规律
D. 联系和发展规律
【单选题】
“肯定和否定相互渗透,在一定意义上,肯定就是否定。”这是一种___
A. 相对主义诡辩论的观点
B. 唯物辩证法的观点
C. 主观唯心主义的观点
D. 形而上学的观点
【单选题】
事物的否定方面是指___
A. 事物的积极方面
B. 事物的消极方面
C. 事物中维持其存在的方面
D. 事物中促使其灭亡的方面
【单选题】
作为辩证的否定的“扬弃”是___
A. 既保留又继承
B. 彻底抛弃
C. 既克服又保留
D. 矛盾的调和
【单选题】
辩证的否定是事物发展的环节,因为辩证的否定___
A. 把旧事物完全抛弃
B. 使旧事物发生量变
C. 是新事物产生、旧事物灭亡
D. 是从外部强加给事物的
【单选题】
否定之否定规律___
A. 在事物完成一个发展周期时才能完整地表现出来
B. 在事物发展过程中任何一点上都可以表现出来
C. 在事物经过量变和质变两种状态后表现出来
D. 在事物发展过程中经过肯定和否定两个阶段表现出来
【单选题】
事物发展的周期性体现了___
A. 事物发展的直线性与曲折性的统一
B. 事物发展是一个不断地回到出发点的运动
C. 事物发展的周而复始的循环性
D. 事物发展的前进性和曲折性的统一
【单选题】
直线论的错误在于只看到___
A. 事物发展的周期性而否认了前进性
B. 事物发展的前进性而否认了曲折性
C. 事物发展的间接性而否认了连续性
D. 事物发展的曲折性而否认了周期性
【单选题】
循环论的错误在于___
A. 只看到事物发展的普遍性,没有看到事物发展过程的特殊性
B. 只看到事物的绝对运动,没有看到事物的相对静止
C. 只看到事物发展道路的曲折性,没有看到事物发展趋势的前进性
D. 只看到新旧事物之间的连续性,没有看到新旧事物之间的间断性
【单选题】
对立统一规律揭示了___
A. 事物发展的动力和源泉
B. 事物发展的状态和过程
C. 事物发展的方向和道路
D. 事物发展的两种趋向
【单选题】
唯物辩证法的实质和核心是___
A. 对立统一规律
B. 质量互变规律
C. 否定之否定规律
D. 联系和发展的规律
【单选题】
辩证法所说的矛盾是指___
A. 人们思维中的前后不一的自相矛盾
B. 事物之间或事物内部各要素之间的对立统一
C. 对立面之间的相互排斥
D. 事物之间或事物内部各要素之间的相互依赖
【单选题】
矛盾的基本属性是___
A. 普遍性和特殊性
B. 绝对性和相对性
C. 变动性和稳定性
D. 斗争性和同一性
【单选题】
依据是___
A. 矛盾的同一性和斗争性辩证关系的原理
B. 矛盾的普遍性和特殊性辩证关系的原理
C. 事物发展的量变和质变辩证关系的原理
D. 事物发展的内因和外因辩证关系的原理
【单选题】
矛盾问题的精髓是___
A. 矛盾的普遍性和特殊性关系的问题
B. 矛盾的同一性和斗争性关系的问题
C. 主要矛盾和次要矛盾关系的问题
D. 矛盾的主要方面和次要方面关系的问题
【单选题】
题的方法都是___
A. 重点论
B. 均衡论
C. 一点论
D. 两点论
【单选题】
“任何个别(无论怎样)都是一般”。这句话的正确含义是___
A. 特殊性就是普遍性
B. 特殊性存在于普遍性之中
C. 普遍性是特殊性的总和
D. 特殊性中包含普遍性
【单选题】
在唯物辩证法看来,水果同苹果、梨、香蕉、桔子等的关系是___
A. 共性和个性的关系
B. 整体和部分的关系
C. 本质和现象的关系
D. 内容和形式的关系
【单选题】
“是就是是,不是就是不是,除此之外都是鬼话。”这是一种___
A. 形而上学的观点
B. 相对主义的观点
C. 唯心主义的观点
D. 辩证法的观点
【单选题】
真象和假象的区别在于___
A. 真象是客观的,假象是主观的
B. 真象表现本质,假象不表现本质
C. 真象深藏于事物内部,假象外露于事物外部
D. 真象从正面直接地表现本质,假象从反面歪曲地表现本质
【单选题】
有的哲学家说,在大风扬起的尘土中,每一粒尘土的运动状况都是纯粹必然的。这是种___
A. 辩证唯物主义决定论的观点
B. 形而上学的机械决定论的观点
C. 唯心主义非决定论的观点
D. 庸俗唯物主义的观点
【单选题】
“或然率”是指___
A. 可能性在质上的一种科学说明和测定
B. 可能性在量上的一种科学说明和测定
C. 必然性的一种科学说明和判定
D. 偶然性的一种科学说明和测定
【单选题】
Economically speaking, are we better off than we were ten years ago? Twenty years ago? In their thirst for evidence on this issue, commentators seized on the recent report by the Census Bureau, which found that average household income rose by 5.2% in 2015. Unfortunately, that conclusion puts too much weight on a useful, but flawed and incomplete, statistic. Among the more significant problems with the Census’s measure are that: 1) it excludes taxes, transfers, and compensation like employer-provided health insurance; and 2) it is based on surveys rather than data. Even if precisely measured, income data exclude important determinants of economic well-being, such as the hours of work needed to earn that income. While thinking about the question, we came across a recently published article by Charles Jones and Peter Klenow, which proposes an interesting new measure of economic welfare. While by no means perfect, it is considerably more comprehensive than average income, taking into account not only growth in consumption per person but also changes in working time, life expectancy, and inequality. Moreover, it can be used to assess economic performance both across countries and over time. The Jones-Klenow method can be illustrated by a cross-country example. Suppose we want to compare the economic welfare of citizens of the U.S. and France in 2005. In 2005, as the authors observe, real consumption per person in France was only 60% as high as the U.S., making it appear that Americans were economically much better off than the French on average. However, that comparison omits other relevant factors: leisure time, life expectancy, and economic inequality. The French take longer vacations and retire earlier, so typically work fewer hours; they enjoy a higher life expectancy, presumably reflecting advantages with respect to health care, diet, lifestyle, and the like; and income and consumption are somewhat more equally distributed there than in the U.S. Because of these differences, comparing France’s consumption with the U.S.’s overstates the gap in economic welfare. Similar calculations can be used to compare the U.S. and other countries. For example, this calculation puts economic welfare in the United Kingdom at 97% of U.S. levels, but estimates Mexican well-being at 22%. The Jones-Klenow measure can also assess an economy’s performance over time. According to this measure, as of the early-to-mid-2000s, the U.S. had the highest economic welfare of any large country. Since 2007, economic welfare in the U.S. has continued to improve. However, the pace of improvement has slowed markedly. Methodologically, the lesson from the Jones-Klenow research is that economic welfare is multi-dimensional. Their approach is flexible enough that in principle other important quality-of-life changes could be incorporated—for example, decreases in total emissions of pollutants and declines in crime rates. What does the author think of the 2015 report by the Census Bureau?___
A. It is based on questionable statistics.
B. It reflects the economic changes.
C. It evidences the improved welfare.
D. It provides much food for thought.
【单选题】
Economically speaking, are we better off than we were ten years ago? Twenty years ago? In their thirst for evidence on this issue, commentators seized on the recent report by the Census Bureau, which found that average household income rose by 5.2% in 2015. Unfortunately, that conclusion puts too much weight on a useful, but flawed and incomplete, statistic. Among the more significant problems with the Census’s measure are that: 1) it excludes taxes, transfers, and compensation like employer-provided health insurance; and 2) it is based on surveys rather than data. Even if precisely measured, income data exclude important determinants of economic well-being, such as the hours of work needed to earn that income. While thinking about the question, we came across a recently published article by Charles Jones and Peter Klenow, which proposes an interesting new measure of economic welfare. While by no means perfect, it is considerably more comprehensive than average income, taking into account not only growth in consumption per person but also changes in working time, life expectancy, and inequality. Moreover, it can be used to assess economic performance both across countries and over time. The Jones-Klenow method can be illustrated by a cross-country example. Suppose we want to compare the economic welfare of citizens of the U.S. and France in 2005. In 2005, as the authors observe, real consumption per person in France was only 60% as high as the U.S., making it appear that Americans were economically much better off than the French on average. However, that comparison omits other relevant factors: leisure time, life expectancy, and economic inequality. The French take longer vacations and retire earlier, so typically work fewer hours; they enjoy a higher life expectancy, presumably reflecting advantages with respect to health care, diet, lifestyle, and the like; and income and consumption are somewhat more equally distributed there than in the U.S. Because of these differences, comparing France’s consumption with the U.S.’s overstates the gap in economic welfare. Similar calculations can be used to compare the U.S. and other countries. For example, this calculation puts economic welfare in the United Kingdom at 97% of U.S. levels, but estimates Mexican well-being at 22%. The Jones-Klenow measure can also assess an economy’s performance over time. According to this measure, as of the early-to-mid-2000s, the U.S. had the highest economic welfare of any large country. Since 2007, economic welfare in the U.S. has continued to improve. However, the pace of improvement has slowed markedly. Methodologically, the lesson from the Jones-Klenow research is that economic welfare is multi-dimensional. Their approach is flexible enough that in principle other important quality-of-life changes could be incorporated—for example, decreases in total emissions of pollutants and declines in crime rates. What does the author say about the Jones-Klenow method?___
A. It is widely used to compare the economic growth across countries.
B. It revolutionizes the way of measuring ordinary people’s livelihood.
C. It focuses on people’s consumption rather that their average income.
D. It is a more comprehensive measure of people’s economic well-being.
【单选题】
Economically speaking, are we better off than we were ten years ago? Twenty years ago? In their thirst for evidence on this issue, commentators seized on the recent report by the Census Bureau, which found that average household income rose by 5.2% in 2015. Unfortunately, that conclusion puts too much weight on a useful, but flawed and incomplete, statistic. Among the more significant problems with the Census’s measure are that: 1) it excludes taxes, transfers, and compensation like employer-provided health insurance; and 2) it is based on surveys rather than data. Even if precisely measured, income data exclude important determinants of economic well-being, such as the hours of work needed to earn that income. While thinking about the question, we came across a recently published article by Charles Jones and Peter Klenow, which proposes an interesting new measure of economic welfare. While by no means perfect, it is considerably more comprehensive than average income, taking into account not only growth in consumption per person but also changes in working time, life expectancy, and inequality. Moreover, it can be used to assess economic performance both across countries and over time. The Jones-Klenow method can be illustrated by a cross-country example. Suppose we want to compare the economic welfare of citizens of the U.S. and France in 2005. In 2005, as the authors observe, real consumption per person in France was only 60% as high as the U.S., making it appear that Americans were economically much better off than the French on average. However, that comparison omits other relevant factors: leisure time, life expectancy, and economic inequality. The French take longer vacations and retire earlier, so typically work fewer hours; they enjoy a higher life expectancy, presumably reflecting advantages with respect to health care, diet, lifestyle, and the like; and income and consumption are somewhat more equally distributed there than in the U.S. Because of these differences, comparing France’s consumption with the U.S.’s overstates the gap in economic welfare. Similar calculations can be used to compare the U.S. and other countries. For example, this calculation puts economic welfare in the United Kingdom at 97% of U.S. levels, but estimates Mexican well-being at 22%. The Jones-Klenow measure can also assess an economy’s performance over time. According to this measure, as of the early-to-mid-2000s, the U.S. had the highest economic welfare of any large country. Since 2007, economic welfare in the U.S. has continued to improve. However, the pace of improvement has slowed markedly. Methodologically, the lesson from the Jones-Klenow research is that economic welfare is multi-dimensional. Their approach is flexible enough that in principle other important quality-of-life changes could be incorporated—for example, decreases in total emissions of pollutants and declines in crime rates. What do Jones and Klenow think of the comparison between France and the U.S. in terms of real consumption per person?___
A. It reflected the existing big gap between the two economies.
B. It neglected many important indicators of people’s welfare.
C. It covered up the differences between individual citizens.
D. It failed to count in their difference in natural resources.
【单选题】
Economically speaking, are we better off than we were ten years ago? Twenty years ago? In their thirst for evidence on this issue, commentators seized on the recent report by the Census Bureau, which found that average household income rose by 5.2% in 2015. Unfortunately, that conclusion puts too much weight on a useful, but flawed and incomplete, statistic. Among the more significant problems with the Census’s measure are that: 1) it excludes taxes, transfers, and compensation like employer-provided health insurance; and 2) it is based on surveys rather than data. Even if precisely measured, income data exclude important determinants of economic well-being, such as the hours of work needed to earn that income. While thinking about the question, we came across a recently published article by Charles Jones and Peter Klenow, which proposes an interesting new measure of economic welfare. While by no means perfect, it is considerably more comprehensive than average income, taking into account not only growth in consumption per person but also changes in working time, life expectancy, and inequality. Moreover, it can be used to assess economic performance both across countries and over time. The Jones-Klenow method can be illustrated by a cross-country example. Suppose we want to compare the economic welfare of citizens of the U.S. and France in 2005. In 2005, as the authors observe, real consumption per person in France was only 60% as high as the U.S., making it appear that Americans were economically much better off than the French on average. However, that comparison omits other relevant factors: leisure time, life expectancy, and economic inequality. The French take longer vacations and retire earlier, so typically work fewer hours; they enjoy a higher life expectancy, presumably reflecting advantages with respect to health care, diet, lifestyle, and the like; and income and consumption are somewhat more equally distributed there than in the U.S. Because of these differences, comparing France’s consumption with the U.S.’s overstates the gap in economic welfare. Similar calculations can be used to compare the U.S. and other countries. For example, this calculation puts economic welfare in the United Kingdom at 97% of U.S. levels, but estimates Mexican well-being at 22%. The Jones-Klenow measure can also assess an economy’s performance over time. According to this measure, as of the early-to-mid-2000s, the U.S. had the highest economic welfare of any large country. Since 2007, economic welfare in the U.S. has continued to improve. However, the pace of improvement has slowed markedly. Methodologically, the lesson from the Jones-Klenow research is that economic welfare is multi-dimensional. Their approach is flexible enough that in principle other important quality-of-life changes could be incorporated—for example, decreases in total emissions of pollutants and declines in crime rates. What is an advantage of the Jones-Klenow method?___
A. It can accurately pinpoint a country’s current economic problems.
B. It can help to raise people’s awareness of their economic well-being.
C. It can diagnose the causes of a country’s slowing pace of economic improvement.
D. It can compare a country’s economic conditions between different periods of time.
【单选题】
Economically speaking, are we better off than we were ten years ago? Twenty years ago? In their thirst for evidence on this issue, commentators seized on the recent report by the Census Bureau, which found that average household income rose by 5.2% in 2015. Unfortunately, that conclusion puts too much weight on a useful, but flawed and incomplete, statistic. Among the more significant problems with the Census’s measure are that: 1) it excludes taxes, transfers, and compensation like employer-provided health insurance; and 2) it is based on surveys rather than data. Even if precisely measured, income data exclude important determinants of economic well-being, such as the hours of work needed to earn that income. While thinking about the question, we came across a recently published article by Charles Jones and Peter Klenow, which proposes an interesting new measure of economic welfare. While by no means perfect, it is considerably more comprehensive than average income, taking into account not only growth in consumption per person but also changes in working time, life expectancy, and inequality. Moreover, it can be used to assess economic performance both across countries and over time. The Jones-Klenow method can be illustrated by a cross-country example. Suppose we want to compare the economic welfare of citizens of the U.S. and France in 2005. In 2005, as the authors observe, real consumption per person in France was only 60% as high as the U.S., making it appear that Americans were economically much better off than the French on average. However, that comparison omits other relevant factors: leisure time, life expectancy, and economic inequality. The French take longer vacations and retire earlier, so typically work fewer hours; they enjoy a higher life expectancy, presumably reflecting advantages with respect to health care, diet, lifestyle, and the like; and income and consumption are somewhat more equally distributed there than in the U.S. Because of these differences, comparing France’s consumption with the U.S.’s overstates the gap in economic welfare. Similar calculations can be used to compare the U.S. and other countries. For example, this calculation puts economic welfare in the United Kingdom at 97% of U.S. levels, but estimates Mexican well-being at 22%. The Jones-Klenow measure can also assess an economy’s performance over time. According to this measure, as of the early-to-mid-2000s, the U.S. had the highest economic welfare of any large country. Since 2007, economic welfare in the U.S. has continued to improve. However, the pace of improvement has slowed markedly. Methodologically, the lesson from the Jones-Klenow research is that economic welfare is multi-dimensional. Their approach is flexible enough that in principle other important quality-of-life changes could be incorporated—for example, decreases in total emissions of pollutants and declines in crime rates. What can we infer from the passage about American people’s economic well-being?___
A. It is much better than that of their European counterparts.
B. It has been on the decline ever since the turn of the century.
C. It has not improved as much as reported by the Census Bureau.
D. It has not been accurately assessed and reported since mid-2000s.
【单选题】
大学生的成才目标是___。
A. 培养德智体美全面发展的人才
B. 培养德智体美全面发展的社会主义建设者
C. 培养德智体美全面发展的社会主义建设者和接班人
D. 培养专业化、创新化的人才
【单选题】
现代人才素质的灵魂是___。
A. 德
B. 智
C. 体
D. 美
【单选题】
___是人才素质的基础.
A. 德
B. 智
C. 体
D. 美