已选分类
管理学工商管理
单选题Is x3 equal to 125? (1)x＞4 (2)x＜6
单选题下列变量哪个属于离散变量( )。 A．企业数 B．总产值 C．销售额 D．利润额
单选题财务管理环境按其与企业的关系，分为：
单选题Are there exactly 3 distinct symbols used to create the code words in language Q? (1)The set of all code words in language Q is the set of all possible distinct horizonal arrangements of one or more symbols, with no repetition. (2)There are exactly 15 code words in language Q.
单选题All trainees in a certain aviator training program must take both a written test and a flight test, If 70 percent of the trainees passed the written test, and 80 percent of the trainees passed the flight test, what percent of the trainees passed both tests? (1)10 percent of the trainees did not pass either test. (2)20 percent of the trainees passed only the flight test. (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A certain club has 237 local branches, one national office, and one social service office. If each local branch has 2 officers, and each of the two other offices has 4 officers, how many officers does the club have altogether?
单选题应收账款周转率一( )。 A．赊销总销售额/应收账款平均余额 B．赊销净销售额/平均应收账款余额 C．赊销总销售额/应收账款平均账面价值 D．赊销净销售额/应收账款平均账面价值
单选题在下列两两组合的平均指标中，两个平均数完全不受极端数值影响的是( )。 A．算术平均数和中位数 B．几何平均数和众数 C．算术平均数和众数 D．众数和中位数
单选题At a certain state university last term, there were p students each of whom paid either the full tuition of x dollars or half the full tuition. What percent of the tuition paid by the p students last term was tuition from students who paid the full tuition? (1)Of the P students, 20 percent paid the full tuition. (2)The p students paid a total of $91.2 million for tuition last term.
单选题下列数列中( )属于时间数列。 A．学生按学习成绩分组形成的数列 B．工业企业按地区分组形成的数列 C．职工按工资水平高低分组形成的数列 D．出口额按时间先后顺序排列形成的数列
单选题If a, b, and c are integers, is the number 3 (a+b)-c divisible by 3? (1)a+b is divisible by 3. (2)c is divisible by 3. (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Questionsrefertothefollowinggraphs.BREAKDOWNOFCOSTTOCONSUMERFORTHEPRODUCTIONOF6OUNCESOFFROZENORANGEJUICE
单选题当相关系数r=1时，表明( )。 A．现象之间完全无关 B．相关程度较小 C．现象之间完全相关 D．无直线相关关系
单选题分布数列是说明( )。 A．总体单位总数在各组的分配情况 B．总体标志总量在各组的分配情况 C．分组的组数 D．各组的分布规律
单选题Thefigureaboveshowsthepresentpositiononaradarscreenofasweepingbeamthatisrotatingataconstantrateinaclockwisedirection.Inwhichofthefourquadrantswillthebeamlie30secondsfromnow?(1)Ineach30-secondperiod,thebeamsweepsthrough3.690°(2)r=40
单选题In Swartkans territory, archaeologists discovered charred bone fragments dating back 1 million years. Analysis of the fragments, which came from a variety of animals, showed that they had been heated to temperatures no higher than those produced in experimental campfires made from branches of white stinkwood, the most common tree around Swartkans.
Which of the following, if true, would, together with the information above, provide the best basis for the claim that the charred bone fragments are evidence of the use of fire by early hominids?
单选题At the Shadybrook dog kennel, all the adult animals were given a new medication designed to reduce a dog"s risk of contracting a certain common infection. Several days after the medication was administered, most of the puppies of these dogs had elevated temperatures. Since raised body temperature is a side effect of this medication, the kennel owner hypothesized that the puppies elevated temperatures resulted from the medication"s being passed to them through their mothers" milk.
Which of the following, if true, provides the most support for the kennel owner"s hypothesis?
单选题Atotalof774doctoratesinmathematicsweregrantedtoUnitedStatescitizensbyAmericanuniversitiesinthe1972～1973schoolyear,andWofthesedoctoratesweregrantedtowomen.Thetotalofsuchdoctoratesinthe1986～1987schoolyearwas362,andωoftheseweregrantedtowomen.IfthenumberofdoctoratesinmathematicsgrantedtofemalecitizensoftheUnitedStatesbyAmericanuniversitiesdecreasedfromthe1972～1973schoolyeartothe1986～1987schoolyear,wasthedecreaselessthan10percent?(1)(2)W=ω+5(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A certain clock marks every hour by striking a number of times equal to the hour and the time required for a stroke is exactly equal to the time interval between strokes. At 6:00 the time lapse between the beginning of the first stroke and the end of the last stroke is 22 seconds. At 12:00, how many seconds elapse between the beginning of the first stroke and the end of the last stroke? (A) 72 (B) 50 (C) 48 (D) 46 (E) 44
单选题重点调查中重点单位是指( )。 A．其标志值和在总体标志总量中占有很大比重的单位 B．具有典型意义或代表性的单位 C．那些具有反映事物属性差的品质标志的单位 D．能用以推算总体标志总量的单位