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【简答题】
Most worthwhile careers require some kind of specialized training. Ideally, therefore, the choice of an occupation should be made even before choice of a curriculum in high school. 1 , most people make several job choices during their working lives, partly because of economic and industrial changes and partly to improve their position. The “one perfect job” does not exist. Young people should therefore enter into a broad flexible training program that will 2 them for a field of work rather than for a single 3 . Unfortunately many young people have to make career plans 4 benefit of help from a competent vocational counselor or psychologist. Knowing 5 about the occupational world, or themselves for that matter, they choose their lifework on a hit-or-miss basis. Some drift from job to job. Others 6 to work in which they are unhappy and for which they are not fitted. One common mistake is choosing an occupation for its real or imagined prestige. Too many high-school students—or their parents for them—choose the professional field, 7 both the relatively small proportion of workers in the professions and the extremely high educational and personal requirement. The imagined or real prestige of a profession or a white-collar job is 8 good reason for choosing it as life’s work. Moreover, these occupations are not always well-paid. Since a large proportion of jobs are in mechanical and manual work, the 9 of young people should give serious consideration to these fields. Before making an occupational choice, a person should have a general idea of what he wants out of life and how hard he is willing to work to get it. Some people desire social prestige; others intellectual satisfaction. Some want security; others are willing to take 10 for financial gain. Each occupational choice has its demands as well as its rewards.
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【判断题】电路交换是整个报文的比特流连续地从源点直达终点,好像在一个管道中传送( )。
A.
正确
B.
错误
【单选题】下 列说法错误的是( )
A.
电路交换是整个报文的比特流连续地从源节点直达终点,好像在一个管道中传送
B.
报文交换是整个报文先传送到相邻节点,全部存储下来后查找转发表,转发到下一个节点
C.
分组交换是单个分组传送到相邻节点,存储下来后查找转发表,转发到下一个节点
D.
报文交换和分组交换数据转发的方式是一样的
【单选题】在给定的生产水平下,为另一个消费者提供同一公共物品所带来的边际成本()零。
A.
大于
B.
小于
C.
不能确定
D.
等于
【单选题】若要对某工厂生产设备状况进行调查,则某工厂“全部生产设备”是()
A.
调查对象
B.
调查项目
C.
报告单位
D.
调查单位
【单选题】决策支持系统的特点是______。 A) 仅以数据为驱动 B) 仅支持非结构化系统 C) 面向决策者 D) 面向操作者
A.
B.
C.
D.
【简答题】谷类和大豆一起吃以提高蛋白质利用率的方法称为
【多选题】关于公共物品的生产,下列说法正确的是______。
A.
政府生产和合同外包是政府生产的两种典型方式
B.
反对公共物品提供私有化的理由是认为私人生产降低了服务的质量
C.
支持公共物品提供私有化的理由是同样的服务由私人生产成本更低
D.
合同外包给盈利性质的机构,才是公共服务提供私有化的表现
E.
公共物品的供给还包括特许经营和合同委托等方式
【单选题】()的主要特点是:整个报文的比特流连续地从源点直达终点。
A.
电路交换
B.
报文交换
C.
分组交换
D.
数据包交换
【判断题】设【图片】,+表示整数的加法运算,则(Z, +)与(2Z,+)同构。
A.
正确
B.
错误
【单选题】根据示意图,下列关于地球公转的叙述吗,错误的是( )
A.
地球在自转的同时,还自东向西绕着太阳公转。
B.
地球运动到位置 ③ 时,北半球昼短夜长。
C.
地球运动到位置 ① 时,北极圈出现极夜现象。
D.
当地球运动到位置 ④ 时,我国大部分地球正处于秋季。
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