已选分类
管理学工商管理
单选题If x=y2, what is the value of y-x? (1)x=4 (2)x+y=2
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
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?
单选题In respectable periodicals, books are given reviewing space in inverse proportion to the likely size of their sales. Airport and supermarket bookstalls stock only books that are expected to sell in large numbers. Consequently, those who buy books at such bookstalls have to do so without any guidance whatever from the book reviewers whose work is published in respectable periodicals.
Which of the following is a valid criticism of the argument above?
单选题
单选题A cashier mentally reversed the digits of one customer's correct amount of change and thus gave the customer art incorrect amount of change. If the cash register contained 45 cents more than it should have as a result of this error, which of the following could have been the correct amount of change in cents? (A) 14 (B) 45 (C) 54 (D) 65 (E) 83
单选题根据标准，某种材料设计的平均强力为8克。现改进工艺后，测得100个强力数据的均值为8.3，假定标准差不变。如果要检验是否由于工艺改进而使平均强力提高，则合理的零假设与备择假设应为 A．H0：μ≥8 H1：μ＜8 B．H0：μ＜8 H1：μ＞8 C．H0：μ≤8 H1：μ＞8 D．H0：μ=8 H1：μ≠8
单选题
办案人员调取原始凭证确有困难的，可以复制，复制件应当标明（ ），并由出具书证人签名或者盖章。
A、经核对无误 B、经核对与原件无误
C、经查证无误 D、经查证与原件无误