已选分类
管理学工商管理
单选题IfthenumberofsquareunitsintheareaofacircleisAandthenumberof1inearunitsinthecircumferenceisC,whatistheradiusofthecircle?(1)(2)A＞C+3
单选题A wildlife preserve is being planned for 3,000 rhinoceroses. The preserve is to contain a total of 10,000 acres of watering area, plus 100 acres of grazing area for each rhinoceros. If the number of rhinoceroses is expected to increase by 10 percent, how many thousand acres should the preserve have in order to provide for the increased population? (A) 340 (B) 330 (C) 320 (D) 310 (E) 300
单选题
单选题满足条件( )时，可以认为抽样成数的概率分布近似正态分布。 A．n＜30 np＜5 n(1-p)＜5 B．n＞30 np＜5 n(1-p)＞5 C．n＞30 np＞5 n(1-p)＜5 D．n＞30 np＞5 n(1-p)＞5
单选题
在广告中使用（ ），是典型的以新闻形式发布广告。
A、消费者自问自答，以此方式介绍产品或者服务的优点或者特点
B、广告模特介绍产品或者服务的优点或者特点
C、消费者与消费者一问一答，以此方式介绍产品或者服务的优点或者特点
D、“记者”或者“市场调查人员”与“消费者”进行双方问答式的调查采访，以此方式介绍产品或者服务的优点或者特点
单选题数量指标指数的同度量因素一般是( )。 A．基期质量指标 B．报告期质量指标 C．基期数量指标 D．报告期数量指标
单选题Of the science books in a certain supply room, 50 are on botany, 65 are on zoology, 90 are on physics, 50 are on geology, and 110 are on chemistry. If science books are removed randomly from the supply room, how many must be removed to ensure that 80 of the books removed are on the same science? (A) 81 (B) 159 (C) 166 (D) 285 (E) 324
单选题构成时间数列的要素一般有( )。 A．1个 B．2个 C．3个 D．4个
单选题计算平均比率或平均速度最适宜用( )。 A．算术平均数 B．调和平均数 C．几何平均数 D．中位数
单选题奠定了管理过程思想基础的是：
单选题The painter Peter Brandon never dated his works, and their chronology is only now beginning to take shape in the critical literature. A recent dating of a Brandon self-portrait to 1930 is surely wrong. Brandon was 63 years old in 1930, yet the painting shows a young, dark-haired man--obviously Brandon, but clearly not a man of 63.
Which of the following, if justifiably assumed, allows the con- clusion to be properly drawn?
单选题为了反映职工工资水平的变动程度，应计算平均工资( )。 A．可变构成指数 B．结构影响指数 C．固定构成指数 D．都不是
单选题A necklace is made by stringing N individual beads together in the repeating pattern red bead, green bead, white bead, blue bead, and yellow bead. If the necklace design begins with a red bead and ends with a white bead, then N could equal
单选题评价一个点估计量是否优良的标准有( )。 A．无偏性、一致性、准确性 B．准确性、有效性、及时性 C．无偏性、有效性、一致性 D．准确性、及时性、完整性
单选题某公司下属20个企业，共有12500名职工。若已知每一个企业月计划产值和计划完成百分数，要计算该公司月平均计划完成百分数，应该采用( )。 A．加权调和平均法计算，权数是计划产值 B．加权算术平均法计算，权数是职工人数 C．加权算术平均法计算，权数是计划产值 D．加权算术平均法计算，权数是企业数
单选题The cost C of manufacturing a certain product can be estimated by the formula C=0, 03rst2, where r and 8 are the amounts, in pounds, of the two major ingredients and t is the production time in hours. If r is increased by 50 percent, s is increased by 20 percent，and t is decreased by 30 percent, by approximately what percent will the estimated cost of manufacturing the product change?
单选题Which of the following statements can be inferred from the graph? Ⅰ．School X has a smaller enrollment than School Y. Ⅱ．If the age of a book is the number of years since purchase, then the average (arithmetic mean) age of a book in the School Y inventory is less than that of a book in the School X inventory. Ⅲ．According to the inventory, School X and School Y purchased the same number of textbooks in 1976.
单选题If S is the sum of the first n positive integers, what is the value of n? (1)S＜20 (2)S2＞220 (A) 条件(1)充分，但条件(2)不充分． (B) 条件(2)充分，但条件(1)不充分． (C) 条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分． (D) 条件(1)充分，条件(2)也充分． (E) 条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．
单选题从客观对象量化分析的难易程度来看，定比测定与定序测定相比，( )。 A．是更为容易的 B．是更为困难的 C．是差不多的 D．是无法比较的
单选题以下四种组织结构中存在双重领导关系的是：