已选分类
管理学工商管理
单选题7．统计学是一门研究客观事物数量方面和数量关系的( )。 A．社会科学 B．自然科学 C．方法论科学 D．实质性科学
单选题下列关系中属于正相关关系的是( )。 A．身高与体重 B．产量与单位成本 C．正常商品的价格与需求量 D．商品零售额与流通费率
单选题某工人月工资为1800元，则“工资”是( )。 A．数量标志 B．品质标志 C．质量指标 D．数量指标
单选题Thepositiveintegernisdivisibleby25.Ifisgreaterthan25,whichofthefollowingcouldbethevalueof?
单选题今年某月发展水平除以去年同期发展水平的指标是( )。 A．定基发展速度 B．环比发展速度 C．平均发展速度 D．年距发展速度
单选题14．对某地区工业企业职工进行调查，调查对象是( )。 A．各工业企业 B．该地区工业企业的全体职工 C．该地区全部工业企业 D．每位职工
单选题A merchant sells an item at a 20 percent discount, but still makes a gross profit of 20 percent of the cost. What percent of the cost would the gross profit on the item have been if it had been sold without the discount? (A) 20% (B) 40% (C) 50% (D) 60% (E) 75%
单选题我国零售物价指数的编制是采用( )方法。 A．个体指数 B．综合指数 C．平均数指数 D．固定权数平均数指数
单选题In 1985 a company sold a brand of shoes to retailers for a fixed price per pair. In 1986 the number of pairs of the shoes that the company sold to retailers decreased by 20 percent, while the price per pair increased by 20 percent. If the company's revenue from the sale of the shoes in 1986 was $3.0 million, what was the approximate revenue from the sale of the shoes in 1985? (A) $2.4 million (B) $2.9 million (C) $3.0 million (D) $3.1 million (E) $3.6 million
单选题In a recent study, sedentary middle-aged men who drink more than two cups of coffee a day were found more likely than other sedentary middle-aged men to have a high blood level of cholesterol, which is a factor increasing risk of heart disease. Cholesterol can reach the blood from food and drink but is not contained in coffee.
Which of the following, if true, most seriously weakens a conclusion from the study that for sedentary middle-aged men coffee increases the risk of heart attack?
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 (A) Ⅰonly (B) Ⅱonly (C) Ⅲonly (D) ⅠandⅡonly (E) Ⅰ, Ⅱ, andⅢ
单选题NET INCOME FOR CORPORATIONS A and B Corporation A Corporation B Net Income in 1987 $2.9 million $0.87 million Percent Decrease in Net Income from 1986 to 1987 8.8% 13.3% The net income of Corporation B in 1986 was approximately what percent of the net income of Corporation A in 1987?
单选题Theadditionproblemaboveshowsfourofthe24differentintegersthatcanbeformedbyusingeachofthedigits1,2,3and4exactlyonceineachinteger.Whatisthesumofthese24integers?
单选题At what speed was a train traveling on a trip when it had completed half of the total distance of the trip? (1)The trip was 460 miles long and took 4 hours to complete. (2)The train traveled at an average rate of 115 miles per hour Oil the trip.
单选题An experiment was done in which human subjects recognize a pattern within a matrix of abstract designs and then select another design that completes that pattern. The results of the experiment were surprising. The lowest expenditure of energy in neurons in the brain was found in those subjects who performed most successfully in the experiments.
Which of the following hypotheses best accounts for the findings of the experiment?
单选题
单选题在分配数列中，频率是指( )。 A．各组的频率相互之比 B．各组次数相互之比 C．各组分布次数与频率之比 D．各组分布次数与总次数之比
单选题An instructor scored a student's test of 50 questions by subtracting 2 times the number of incorrect answers from the number of correct answers. If the student answered all of the questions and received a score of 38, how many questions did that student answer correctly? (A) 19 (B) 38 (C) 41 (D) 44 (E) 46
单选题
单选题What is the probability that events A and B both occur? (1)The probability that event A occurs is 0.8. (2)The probability that event B occurs is 0.6. (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．