已选分类
管理学工商管理
单选题21．受人们主观认识影响较大的调查是( )。 A．抽样调查 B．重点调查 C．典型调查 D．统计报表制度
单选题The large amounts of carbon dioxide now being released into the atmosphere by the burning of fossil fuels will not, in fact, result in a greenhouse effectan increase in average global temperatures. Since plants use carbon dioxide in larger quantities if the supply is increased, they are able to grow larger and multiply more vigorously, and atmospheric carbon dioxide concentrations will eventually become stable.
Which of the following, if true, would most seriously weaken the conclusion that a greenhouse effect will not result from the current release of large amounts of carbon dioxide into the atmosphere?
单选题A museum director, in order to finance expensive new acquisitions, discreetly sold some paintings by major artists. All of them were paintings that the director privately considered inferior. Critics roundly condemned the sale, charging that the museum had lost first-rate pieces, thereby violating its duty as a trustee of art for future generations. A few months after being sold by the museum, those .paintings were resold, in an otherwise stagnant art market, at two to three times the price paid to the museum. Clearly, these prices settle the issue, since they demonstrate the correctness of the critics" evaluation.
The reasoning in the argument is vulnerable to the criticism that the argument does which one of the following?
单选题When the integer k is divided by 12, the remainder is 3. Which of the following, when divided by 12, will have a remainder of 6? Ⅰ 2k Ⅱ 6k Ⅲ 4k+6
单选题Any United States flag manufactured outside the United States should be banned from importation, since some foreign manufacturers superimpose images on the United States flag and sell such products with relative impunity. United States manufacturers, on the other hand, would face penalties for such violations of the United States flag code.
Which of the "following is the best criticism of the argument above?
单选题Thefigureaboverepresentsthefloorofasquarefoyerwithacircularrugpartiallycoveringthefloorandextendingtotheouteredgesofthefloorasshown.Whatistheareaofthefoyerthatisnotcoveredbytherug?(1)Theareaofthefoyeris9squaremeters.(2)Thearea0ftherugis2.25πsquaremeters.
单选题在假设检验中，β表示( )。 A．P{接受H0|H0为真} B．P{拒绝H0|H0为真} C．P{接受H1|H1为真} D．P{接受H0|H1为真}
单选题IfAisthecenterofthecircleshownaboveandAB=BC=CD，whatisthevalueofx?
单选题下列分组中( )是按品质标志分组。 A．企业按年生产能力分组 B．产品按质量进行分组 C．家庭按人均收入水平分组 D．人口按年龄分组
单选题The average (arithmetic mean) of 3 different positive integers is 100 and the largest of these 3 integers is 120, what is the least possible value of the smallest of these 3 integers?
单选题区间估计的置信度是指( ) A．概率 B．允许误差的大小 C．概率保证程度 D．抽样平均误差的大小
单选题分工给组织带来的弊端是（）
单选题Apersonboughtatickettoaballgamefor$15andlatersoldtheticketfor$60.Whatwasthepercentincreaseinthepriceoftheticket?(A)25%(B)(C)75%(D)300%(E)400%
单选题Houses built during the last ten years have been found to contain indoor air pollution at levels that are, on average, much higher than the levels found in older houses. The reason air-pollution levels are higher in the newer houses is that many such houses are built near the sites of old waste dumps or where automobile emissions are heavy.
Which of the following, if true, calls into question the explanation above?
单选题当r=0.8时，下列说法正确的是( )。 A．80/%的点都密集在一条直线的周围 B．80/%的点高度相关 C．其线性程度是r=0.4的两倍 D．两变量高度正线性相关
单选题以某一固定时期作分母而计算出来的指数是( )。 A．环比指数 B．定基指数 C．数量指标指数 D．质量指标指数
单选题等级相关系数与简单线性相关系数的相同之处在于( )。 A．适用的条件 B．计算公式 C．取值范围 D．不存在
单选题In a refinery, the capacity of oil tank A is 70 per cent of the capacity of oil tank B. How many more gallons of oil are in tank A than in tank B? (1)Tank A is 90 percent full; tank B is 50 percent full. (2)When full, tank A contains 50,000 gallons of oil.
单选题In 1985 the city"s Fine Arts Museum sold 30,000 single-entry tickets. In 1986 the city"s Folk Arts and Interior Design museums opened, and these three museums together sold over 80,000 such tickets that year. These museums were worth the cost, since more than twice as many citizens are now enjoying the arts.
Which of the following, if true, most seriously weakens the author"s assertion that more than twice as many citizens are now enjoying the arts?
单选题成数与成数方差的关系是( )。 A．成数的数值越接近于1，成数的方差越大 B．成数的数值越接近于0，成数的方差越大 C．成数的数值越接近于0.5，成数的方差越大 D．成数的数值越大，成数的方差越大