已选分类
管理学工商管理
单选题
工商行政管理在国外产生于20世纪（ ）年代初。
A、30 B、40 C、50 D、60
单选题序时平均数与一般平均数的共同点是( )。 A．两者均是反映同一总体的一般水平 B．都是反映现象的一般水平 C．两者均可消除现象波动的影响 D．共同反映同质总体在不同时间上的一般水平
单选题If x is the product of three consecutive positive integers, which of the following must be true? Ⅰ. x is an integer multiple of 3. Ⅱ. x is an integer multiple of 4. Ⅲ. x is an integer multiple of 6.
单选题若圆C：(x+1)2+(y-1)2=1与x轴交于点A、与y轴交于点B，则与此圆相切于劣弧．中点M(注：小于半圆的弧称为劣弧)的切线方程是()．
单选题
1995年12月，国务院批准了中编办《关于审定基层工商所人员编制的报告》，将工商所干部改为行政编制，全国属于事业编制的（ ）万多名工商行政管理干部转为国家公务员。
A、26 B、36 C、46 D、56
单选题若要了解某地区居民收入水平，则采用( )方式比较适合。 A．普查 B．重点调查 C．统计报表制度 D．抽样调查
单选题专业比率不满百分之七十，关联比率为百分之七十以上的企业所采取的多种经营战略为：
单选题两个变量之间的协方差( )。 A．必定大小零 B．必定小于零 C．必定在正、负1之间 D．以上全错
单选题对总体平均数和样本平均数表述正确的是( )。 A．总体平均数是确定值，样本平均数是随机变量 B．总体平均数是随机变量，样本平均数是确定值 C．两者都是随机变量 D．两者都是确定值
单选题Do strong electric currents, by means of the electromagnetic fields that accompany them, cause cancer in people who live and work nearby? Telephone line workers, who work near such currents every day, can provide a test case. They show elevated levels of brain cancer; therefore, the hypothesis of electromagnetic causation is supported.
Which of the following, if true, most seriously weakens the argument?
单选题16．抽样调查的主要目的是( )。 A．随机抽取样本单位 B．对调查单位做深入研究 C．计算和控制抽样误差 D．用样本指标来推算或估计总体指标
单选题To reduce costs, a company is considering a drastic reduction in the number of middle-level managers. This reduction would be accomplished by first offering early retirement to those 50 years of age or older with 15 years of service, and then by firing enough of the others to bring the overall reduction to 50 percent.
Each of the following, assuming that it is a realistic possibility, is a possible disadvantage to the company of the plan EXCEPT:
单选题When a person is under intense psychological stress, his or her cardiovascular response is the same as it is during vigorous physical exercise. Psychological stress, then, must be beneficial for the heart as is vigorous physical exercise.
The argument above relies on which of the following assumptions?
单选题二项分布的方差为( )。 A．n(1-n)p B．np(1-p) C．np D．n(1-p)
单选题某单位职工的总平均工资比基期提高了10/%，职工人数结构变动指数为105/%，则各类职工的平均工资水平( )。 A．提高5/% B．提高4.8/% C．下降4.6/% D．提高15.5/%
单选题A 2-year certificate of deposit is purchased for k dollars. If the certificate earns interest at an annual rate of 6 percent compounded quarterly, which of the following represents the value, in dollars, of the certificate at the end of the 2 years? (A) (1.06)2k (B) (1.06)8k (C) (1.015)2k (D) (1.015)8k (E) (1.03)4k
单选题How many minutes long is time period X? (1)Time period X is 3 hours-long. (2)Time period X starts at 11 p.m. and ends at 2 a.m.
单选题对全国各铁路交通枢纽的货运量等进行调查以了解全国铁路货运概况属于( )。 A．抽样调查 B．一次性调查 C．典型调查 D．经常性调查
单选题Scientists now believe that artificial-hip implants, previously thought to be safe, may actually increase the risk of cancer in recipients after about 45 years of use. Though these implants do improve the quality of recipients" lives, the increased risk of cancer is an unacceptable price to pay for these improvements. Therefore, they should be banned.
Which of the following, if true, is the strongest counterargument to the argument above?
单选题A merchant purchased a jacket for $60 and then determined a selling price that equalled the purchase price of the jacket plus a markup that was 25 percent of the selling price. During a sale, the merchant discounted the selling price by 20 percent and sold the jacket. What was the merchant's gross profit on this sale?