已选分类
管理学工商管理
单选题在生产与作业系统中，起综合性作用的生产要素是（ ）
单选题The pharmaceutical industry argues that because new drugs will not be developed unless heavy development costs can be recouped in later sales, the current 20 years of protection provided by patents should be extended in the case of newly developed drugs. However, in other industries newproduct development continues despite high development costs, a fact that indicates that the extension is unnecessary. Which of the following, if true, most strongly supports the pharmaceutical industry"s argument against the challenge made above?
单选题How many integers between 100 and 150, inclusive, can be evenly divided by neither 3 nor 5?
单选题某管理局对其所属企业的生产计划完成百分比采用如下分组，请指出哪项是正确的?( ) A．80/%～89/% 90/%～99/% 100/%～109/% 110/%以上 B．80/%～以下 80.1/%～90/% 90.1/%～100/% 100.1/%～110/% C．90/%以下 90/%～99/% 100/%～110/% 110/%以上 D．85/%以上 85/%～95/% 95/%～105/% 105/%～115/%
单选题The nations biggest retailers reported strong sales during the last six months. During this period of strong sales, profits were weaker than usual. This state of affairs is unusual since or ordinary when sales increase, profits also increase. Which of the following, if true during the last six months, most helps to account for the unusual state of affairs described above?
单选题某班同学参加智力竞赛，共有A，B，C三题，每题或得0分或得满分。竞赛结果无人得0分，三题全部答对的有1人，答对2题的有15人。答对A题的人数和答对B题的人数之和为29人，答对A题的人数和答对C题的人数之和为25人，答对B题的人数和答对C题的人数之和为20人，那么该班的人数为( )。
单选题Since 1975 there has been in the United States a dramatic decline in the incidence of traditional childhood diseases such as measles. This decline has been accompanied by an increased incidence of Peterson"s disease, a hitherto rare viral infection, among children. Few adults, however, have been affected by the disease.
Which of the following, if true, would best help to explain the increased incidence of Peterson"s disease among children?
单选题计量层次最低的数据是 A．分类数据 B．顺序数据 C．数值型数据 D．观测数据
单选题敏捷化思想的出发点是基于（ ）
单选题Virginia, Adrienne, and Dennis have taught history for a combined total of 96 years. If Virginia has taught for 9 more years than Adrienne and for 9 fewer years than Dennis, for how many years has Dennis taught?
单选题A certain truck manufacturer must have sales of $4.5 billion to break even this year. If the manufacturer had sales of $ 1.9 billion for the first half of the year, then, to break even for the year, its sales for the second half must be approximately what percent higher than its sales for the first half?
单选题Today"s low gasoline prices make consumers willing to indulge their preference for larger cars, which consume greater amounts of gasoline as fuel. So United States automakers are unwilling to pursue the development of new fuelefficient technologies aggressively. The particular reluctance of the United States automobile industry to do, so, however, could threaten the industry"s future.
Which of the following, if true, would provide the most support for the claim above about the future of the United States automobile industry?
单选题抽样调查所必须遵循的基本原则是( )。 A．准确性原则 B．随机性原则 C．可靠性原则 D．灵活性原则
单选题If 75 percent of a class answered the first question on a certain test correctly, 55 percent answered the second question on the test correctly, and 20 percent answered neither of the questions correctly, what percent answered both correctly?
单选题Mr.JonesdrovefromTownAtoTownBinxhours.Onthereturntripoverthesameroute,hisaveragespeedwastwiceasfast.Whichofthefollowingexpressesthetotalnumberofdrivinghoursfortheroundtrip?
单选题用于产品设计、组织生产，增强对市场多品种、中小批量产品需求适应性，提高效益的有效方法和途径的是（ ）
单选题If ω, x, y, and z are non-negative integers, each less than 3, and ω(3
3
)+x(3
2
)+y(3)+z=34，thenω+z=
单选题SeedmixtureXis40percentryegrassand60percentbluegrassbyweight;seedmixtureYis25percentryegrassand75percentfescue.IfamixtureofXandYcontains30percentryegrass,whatpercentoftheweightofthismixtureisX?
单选题决定是按工段形式组织生产还是按班组的形式去组织生产，这是组织与管理方面战略决策的（ ）
单选题变量之间的相关程度越低，则相关系数的数值( )。 A．越小 B．越接近于0 C．越接近于-1 D．越接近于1