相关试题
【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】
世界政治格局发展的必然趋势是___。
A. “多极化”
B. 单边主义
C. 两极格局形成
D. 一超独霸
【单选题】
在全面发展的教育中德、智、体、美是缺一不可,统一存在的,其中处于主导地位的是___。
【单选题】
时代精神的内涵十分丰富,其中___居于核心地位。
A. 艰苦奋斗
B. 自强不息
C. 团结统一
D. 改革创新
【单选题】
民族精神是一个民族赖以生存和发展的精神支撑。中华民族在五千年的发展中所形成的伟大民族精神的核心是___。
A. 爱国主义
B. 人道主义
C. 科学主义
D. 革命英雄主义
【单选题】
下列名言反映中华民族是一个艰苦奋斗的民族的有___。
A. 艰难困苦,玉汝于成
B. 先天下之忧而忧
C. 生于忧患,死于安乐
D. 民无信不立
【单选题】
10。___是我们立党立国的根本指导思想
A. 马克思主义
B. 社会主义荣辱观
C. 社会主义思想道德
D. 爱国主义11. 当代大学生的历史使命是(A)
【单选题】
衡量大学生全面发展的一个重要标准是___
A. 知识渊博
B. 品质高尚
C. 德才兼备
D. 知行统一
【单选题】
独立生活意识指___
A. 自己的事情自己处理不需要别人管
B. 自己想干什么就干什么
C. 树立自信、自律、自立、自强的精神
D. 天马行空独来独往
【单选题】
___作为社会主义核心价值体系的精髓,解决的是应当具备什么样的精神状态和精神风貌的问题。
A. 马克思主义的指导地位
B. 中国特色社会主义的共同理想
C. 民族精神和时代精神
D. 社会主义荣辱观
推荐试题
【单选题】
for (j=0;j<10;j++);循环结束后,j的值是___。
【单选题】
下面对数组的定义正确的是 ___
A. int n=10; int array[n]
B. int array[10]
C. int n; scanf(“%d”,&n); int array[n]
D. int n; int array[n]; scanf(“%s”,array)
【单选题】
正确的数组定义语句为 ___
A. int A[-3]
B. int A[3,5]
C. int A[ ][ ]
D. int *A[3]
【单选题】
设已定义数组int array[3][4]; 则对此数组正确的引用是 ___
A. array[1,2]
B. array [1][4]
C. array[1][1+2]
D. array(1)(3)
【单选题】
设二维数组array有m列,则在array[i][j]之前的元素个数为___
A. j*m+i
B. i*m+j
C. i*m+j-1
D. i*m+j+1
【单选题】
长度为5的int类型数组和长度为3的double类型数组,哪一个数组占用内存空间多___
A. int 型的多
B. double型的多
C. 一样多
D. 不一定
【单选题】
字符数组char a[]=“one\n”;占多少内存字节___
【单选题】
下面哪个说法是错误的___
A. 数组元素有相同的名字
B. 数组元素有相同的数据类型
C. 数组元素在内存中是连续存储的
D. 数组元素有据有相同的下标
【单选题】
二维数组第一个元素的下标是___
A. 0,0
B. 0,1
C. 1,1
D. 1,0
【单选题】
若有定义 float x[3][100],下标最大的数组元素是___
A. x[2][99]
B. x[0][100]
C. x[3][99]
D. x[2][100]
【单选题】
判断字符串s1是否大于字符串s2, 则应当使用: ___
A. if(s1>s2)
B. if(strcmp(s1,s2))
C. if(strcmp(s1,s2)>0)
D. if(strcmp(s2,s1)>0)
【单选题】
下述对C语言字符数组的描述正确的是___
A. 任何一维数组的名称都是该数组存储单元的开始地址,且其每个元素按照顺序连续占用存储空间
B. 一维数组的元素在引用时其下标大小没有限制
C. 任何一个一维数组的元素,可以根据内存的情况按照其先后顺序以连续或非连续的方式占用存储
【单选题】
下述对C语言字符数组的描述中正确的是___
A. 任何一个一维数组的元素在引用时,其下标可以是整型、实型或字符型常量
B. 一维数组的元素实质上就是一个变量,代表内存中的一个存储单元
C. 如果要引用数组中的每一个元素,则直接使用该数组名称即可
D. 以上都不对
【单选题】
在一个C语言程序构成中,较完整的描述是___
A. 由主程序与子程序构成
B. 由多个主函数与多个函数构成
C. 由主函数与函数构成
D. 由一个主函数与多个函数构成
【单选题】
C语言在程序开始执行时,其正确的描述是___
A. 由编写程序语句的顺序格式执行
B. 在主函数main()开始处执行
C. 在第一个函数处执行
D. 由人随机选择执行
【单选题】
下列有关函数错误的描述是___
A. C语言中允许函数嵌套定义
B. C语言中允许函数递归调用
C. 调用函数时,实参与形参的个数、类型需完全一致
D. C语言函数的缺省数据类型是int类型
【单选题】
在C语言中,各个函数之间具有的关系是___
A. 不允许直接递归调用,也不允许间接递归调用
B. 允许直接递归调用,不允许间接递归调用
C. 不允许直接递归调用,允许间接递归调用
D. 允许直接递归调用,也允许间接递归调用
【单选题】
在C语言中,函数的返回值的类型是由___
A. C语言的编译程序,在程序编译时决定
B. 由调用该函数的主调函数所决定
C. 由return语句的表达式的类型所决定
D. 由定义该函数时指定的函数类型所决定
【单选题】
当调用函数时,如果实参是一个数组名,则向函数传送的是___
A. 数组的首元素
B. 数组的首地址
C. 数组每个元素的地址
D. 数组每个元素中的值
【单选题】
下列说法正确的是___
A. 一个函数的函数体必须要有变量定义和执行部分,二者缺一不可
B. 一个函数的函数体必须要有执行部分,可以没有变量定义
C. 一个函数的函数体可以没有变量定义和执行部分,函数可以是空函数
D. 以上都不对
【单选题】
下列说法正确的是___
A. main函数必须放在C程序的开头
B. main函数必须放在C程序的最后
C. main函数可以放在C程序的中间部分,即在一些函数之前在另一个函数之后,但在执行C程序时是从程序开头执行的
D. main函数可以放在C程序的中间部分,即在一些函数之前在另一些函数之后,但在执行C程序时是从main函数开始的
【单选题】
下列说法正确的是___
A. 在执行C程序时不是从 main函数开始的
B. C程序书写格式严格限制,一行内必须写一个语句
C. C程序书写格式自由,一个语句可以分写在多行上
D. C程序书写格式严格限制,一行内必须写一个语句,并要有行号
【单选题】
定义int*swap()指的是___
A. 一个返回整型值的函数swap()
B. 一个返回指向整型值指针的函数swap()
C. 一个指向函数swap()的指针,函数返回一个整型值
D. 以上说法均错
【单选题】
使用错误的是___
A. *(&a[0][0]+10*i+j)
B. *(a+i)+j
C. *(*(a+i)+j)
D. *(a[i]+j)
【单选题】
当定义了一个结构体变量后,系统分配给该变量分配的内存是___。
A. 结构体中各成员所需内存量的总和
B. 结构体中第一个成员所需的容量
C. 成员中占内存量最大者所需的容量
D. 结构体中最后一个成员所需内存量
【单选题】
则以下对结构体变量std中成员age的引用方式不正确的是___。
A. std.age
B. p->age
C. (*p).age
D. *p.age
【单选题】
以下对共用体类型数据的叙述正确的是___。
A. 可以对共有体变量名直接赋值
B. 一个共用体变量中可以同时存放其所有成员
C. 一个共有体变量中不能同时存放其所有成员
D. 共用体类型定义中不能出现结构体类型的成员
【单选题】
下面对typedef的叙述中不正确的是___。
A. 用typedef可以定义各种类型名,但不能用来定义变量
B. 用typedef可以增加新类型
C. 用typedef只是将已存在的类型用一个新的标识符来表示
D. 使用typedef有利于程序的通用和移植
【单选题】
C语言共用体类型变量在程序运行期间___。
A. 所有成员一直驻留在内存中
B. 只有一个成员驻留在内存中
C. 部分成员驻留在内存中
D. 没有成员驻留在内存中
【单选题】
当说明一个共用体变量时系统分配给它的内存是___。
A. 各成员所需内存量的总和。
B. 第一个成员所需内存量。
C. 成员中占内存量最大者所需的容量。
D. 最后一个成员所需内存量。
【单选题】
已有定义“struct xy{int a; double b;}m;”,变量m的成员a的正确表示是___。
A. m.a
B. m->a
C. *m.a
D. xy.a
【单选题】
以下各选项企图说明一种新的类型名,其中正确的是___。
A. typedef int v1
B. typedef v2=int
C. typedef v3 int
D. typedef v4: int
【单选题】
则下面叙述中正确的是___。
A. PER 是结构体变量名
B. PER 是结构体类型名
C. typedef struct 是结构体类型
D. struct 是结构体类型名
【单选题】
枚举类型首元素默认值和两个相邻元素之间默认的差值分别是___。
A. 1,0
B. 1,1
C. 0,1
D. 0,0
【单选题】
对结构体类型的变量的成员的访问,可使用的运算符是___。
【单选题】
定义结构体的关键字是___。
A. struct
B. union
C. enum
D. typedef
【单选题】
使用共用体变量,不可以___。
A. 节省存储空间
B. 进行动态管理
C. 简化程序设计
D. 同时访问所有成员
【单选题】
下面说法中错误的是___。
A. 函数可以返回一个共用体变量
B. 在任一时刻,共用体变量的各成员只有一个有效
C. 共用体内的成员可以是结构变量,反之亦然
D. 共用体变量的地址和它各成员的地址都是同一地址
【单选题】
定义共用体的关键字是___。
A. union
B. typedef
C. enum
D. struct
【单选题】
以下对枚举类型名的定义中正确的是___。
A. enum a {"sum","mon","tue"}
B. enum a={sum,mon,tue}
C. enum a={"sum","mon","tue"}
D. enum a {sum=9,mon=-1,tue}