已选分类
管理学
单选题∑q1p0-∑q0p0表示( )。 A．N于价格变动引起的产值增减数 B．由于价格变动引起的产量增减数 C．由于产量变动引起的价格增减数 D．N于产量变动引起的产值增减数
单选题在相关分析中，对两个变量的要求是( )。 A．都是随机变量 B．都不是随机变量 C．一个是随机变量，一个是确定性变量 D．都是确定性变量
单选题统计报表大多数属于( )。 A．一次性全面调查 B．经常性全面调查 C．经常性非全面调查 D．一次性非全面调查
单选题身高y与体重x之间的关系是( )。 A．函数关系 B．无关系 C．互为因果关系 D．严格的依存关系
单选题
工商行政管理的主体是（ ）。
A、国家 B、工商局 C、国务院 D、国家工商行政管理总局
单选题At a certain university, if 50 percent of the people who inquire about admission policies actually submit applications for admission, what percent of those who submit applications for admission enroll in classes at the university? (1)Fifteen percent of those who submit applications for admission are accepted at the university. (2)Eighty percent of those who are accepted send a deposit to the university.
单选题QuadrilateralRSTUshownaboveisasiteplanforaparkinglotinwhichsideRUisparalleltosideSTandRUislongerthanST.Whatistheareaoftheparkinglot?(1)RU=80meters(2)TU=meters
单选题
单选题Many institutions of higher education suffer declining enrollments during periods of economic slowdown. At two-year community colleges, however, enrollment figures boom during these periods when many people have less money and there is more competition for jobs.
Each of the following, if true, helps to explain the enrollment increases in two-year community colleges described above EXCEPT:
单选题Three stacks containing equal numbers of chips are to be made from 9 red chips, 7 blue chips，and 5 green chips．If all of these chips are used and each stack contains at least 1 chip of each color, what is the maximum number of red chips in any one stack?
单选题The geese that gather at the pond of a large corporation create a hazard for executives who use the corporate helicopter, whose landing site is 40 feet away from the pond. To solve the problem, the corporation plans to import a large number of herding dogs to keep the geese away from the helicopter.
Which of the following, if a realistic possibility, would cast the most serious doubt on the prospects for success of the corporation"s plan?
单选题If x=y2, what is the value of y-x? (1)x=4 (2)x+y=2
单选题A store currently charges the same price for each towel that it sells. If the current price of each towel were to be increased by $1,10 fewer of the towels could be bought for $120, excluding sales tax. What is the current price of each towel? (A) $1 (B) $2 (C) $3 (D) $4 (E) $12
单选题平行分组与复合分组的主要区别在于( )。 A．分组标志的多少不一样 B．分组数目的多少不相同 C．分组的方式不一样 D．研究目的和对象不相同
单选题Hardin argued that grazing land held in common (that is, open to any user) would always be used less carefully than private grazing land. Each rancher would be tempted to overuse common land because the benefits would accrue to the individual, while the costs of reduced land quality that results from overuse would be spread among all users. But a study comparing 217 million acres of common grazing land with 433 million acres of private grazing land showed that the common land was in better condition.
Which of the following, if true and known by the ranchers, would best help explain the results of the study?
单选题从事于同类产品的不同产销阶段生产经营的企业所进行的并购，称为：
单选题IftankXcontainsonlygasoline,howmanykilolitersofgasolineareintankX?(1)IfofthegasolineintankXwerepumpedoutthetankwouldbefilledtoofitscapacity.(2)If0.75kiloliterofgasolinewerepumpedintotankX,itwouldbefilledtocapacity.(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Many people acquire software programs for their home computers by illegally copying those programs rather than purchasing them. People who own home computers must be making, on average, fewer illegal copies of software programs than before, however, since the average number of software programs that people purchase to use on their home computers has increased substantially over the past five years.
Which of the following, if true, most strengthens the argument?
单选题人口数与出生人数相比，( )。 A．前者是时期指标，而后者是时点指标 B．前者是时点指标，而后者是时期指标 C．两者都是时点指标 D．两者都是时期指标
单选题Nuclear fusion is a process whereby the nuclei of atoms are joined, or "fused," and in which energy is released. One of the by-products of fusion is helium-4 gas. A recent fusion experiment was conducted using "heavy" water contained in a sealed flask. The flask was, in turn, contained in an air-filled chamber designed to eliminate extraneous vibration. After the experiment, a measurable amount of helium-4 gas was found in the air of the chamber. The experimenters cited this evidence in support of their conclusion that fusion had been achieved.
Which one of the following, if tree, would cast doubt on the experimenters" conclusion?