已选分类
管理学
试题题型
单选题How many positive integers k are there such that 100k is a factor of (22)(3)(53)?
单选题How many three-digit numerals begin with a digit that represents a prime number and end with a digit that represents a prime number?
单选题DISTRlBUTl0NOFSALESINCOMEFORSTORESLASTWEEKAccordingtothegraphabove,thesaleoffruitsandvegetablesinStoreSlastweekaccountedforwhatpercentofthetotalsalesincomefortheweek?(1)LastweekthetotalincomefromthesaleoffruitsandvegetablesinStoreSwas$16,000.(2)x=2y
单选题An infinite sequence of positive integers is called an "alpha sequence" if the number of even integers in the sequence is finite. If S is an infinite sequence of positive integers, is S an alpha sequence? (1)The first ten integers in S are even. (2)An infinite number of integers in S are Odd.
单选题Walter: A copy of an artwork should be worth exactly what the original is worth if the two works are visually indistinguishable. After all, if the two works are visually indistinguishable, they have all the same qualities, and if they have all the same qualities, their prices should be equal.
Marissa: How little you understand art! Even if someone could make a perfect copy that is visually indistinguishable from the original, the copy would have a different history and hence not have all the same qualities as the original.
单选题Ifab≠0,inwhatquadrantofthecoordinatesystemabovedoespoint(a,b)lie?(1)(b,a)liesinquadrantⅣ.(2)(a,-b)liesinquadrantⅢ.
单选题If P is a set of integers and 3 is in P, is every positive multiple of 3 in P? (1)If x is in P，then x+3 is in P. (2)If x is in p, then x-3 is in p.
单选题In an office, 40 percent of the workers have at least 5 years of service, and a total of 16 workers have at least 10 years of service. If 90 percent of the workers have fewer than 10 years of service, how many of the workers have at least 5 but fewer than 1 0 years of service?
单选题When cut, the synthetic material fiberglass, like asbestos, releases microscopic fibers into the air. It is known that people who inhale asbestos fibers suffer impairment of lung function. A study of 300 factory workers who regularly cut fiberglass showed that their lung capacity is, on average, only 90 percent of that of a comparable group of people who do not cut fiberglass.
The statements above, if tree, most strongly support which of the following hypotheses?
单选题If n is an integer between 2 and 100 and if n is also the square of an integer, what is the value of n? (1)n is the cube of an integer. (2)n is even. (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NUMBEROFFARMSINTHEUNITEDSTATES,Theaverageacreageperfarmwasapproximately140in1910and220in1950.Theratioofthetotalfarmlandacreagein1910tothetotalin1950wasmostnearly
单选题Every human being who has ever lived had two parents. Therefore, more people were alive three thousand years ago than are alive now.
The reasoning in the argument is flawed because it
单选题Ifwhenacertainmtegerxisdividedby5theremainderis2,theneachofthefollowingcouldalsobeaninteger
单选题How many integers 72 greater than 10 and less than 100 are there such that, if the digits of n are reversed, the resulting integer is n+9? (A) 5 (B) 6 (C) 7 (D) 8 (E) 9
单选题Asumof$200,000fromacertainestatewasdividedamongaspouseandthreechildren.Howmuchoftheestatedidtheyoungestchildreceive?(1)Thespousereceivedofthesumfromtheestate,andtileoldestchildreceivedoftheremainder.(2)Eachofthetwoyoungerchildrenreceived$12.500morethantheoldestchildand$62,500lessthanthespouse.
单选题Coins are to be put into 7 pockets so that each pocket contains at least one coin. At most 3 of the pockets are to contain the same number of coins, and no two of the remaining pockets are tO contain an equal number of coins. What is the least possible number of coins needed for the pockets?
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 findngs of the experiment?
单选题 CREATE YUUR OWN SUNDAE 12 Ice Cream Flavors 10 Kind of Candies 8 Liquid Toppings 5 Kinds of Toppings With or Without Whipped cream If a customer makes exactly one selection from each of the five categories shown in the table above, what is the greatest possible number of different ice cream sundaes that a customer can create?
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.
单选题IfthenumberofsquareunitsintheareaofacircleisAandthenumberof1inearunitsinthecircumferenceisC,whatistheradiusofthecircle?(1)(2)A＞C+3