已选分类
管理学
单选题Government bans on the dumping of sludge anywhere in the ocean are based on the belief that the spread of sludge by ocean currents poses a danger to people. Since it is not clear that sludge dumped on the ocean bottom, far from coasts, would endanger people, the bans should be revised to apply only to coastal waters.
Each of the following, if true, supports the conclusion that the bans on ocean dumping should be revised EXCEPT:
单选题Inamayoralelection,CandidateXreceivedmorevotesthancandidateY,andCandidateYreceivedfewervotesthanCandidateZ.IfCandidateZreceived24,000votes,howmanyvotesdidCandidateXreceive?
单选题How many minutes long is time period X? (1)Time period X is 3 hours-long. (2)Time period X starts at 11 p.m. and ends at 2 a.m. (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?
单选题Iftheareaofthecircleaboveis64π,whatisthevalueofk?
单选题Since applied scientific research is required for technological advancement, many have rightly urged an increased emphasis in universities on applied research. But we must not give too little attention to basic research, even though it may have no foreseeable application, for tomorrow"s applied research will depend on the basic research of today.
If the statements above are true, which of the following can be most reliably inferred?
单选题At 9 a.m, a hiker was due south of point P. What direction was point P from her position at noon? (1)From 9 a.m until 11 a.m she walked due east at 2 miles per hour, and from 11 a. m until noon, she walked due north at 3 miles per hour. (2)At noon, she is exactly 4.5 miles from point P. (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What is the greatest commom divisor of positive integers m and n? (1)m is a prime number. (2)m and n are consecutive integers. (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Foranyintegerngreaterthan1,denotestheproductofalltheintegersfrom1ton,inclusive.Howmanyprimenunbersaretherebetweenand,inclusive?
单选题If 77,777=70, 707+(7.07×n), then n
单选题Board member: As a longtime member of the college"s board of trustees, I believe that the board has functioned well in the past because each of its members has had a broad range of experience and interests. Thus, if in the future any members are elected primarily to press for a particular policy, such as reducing tuition, the board will function leas well.
In drawing the conclusion above, the board member must have been making which of the following assumptions?
单选题In△PQRabove,isPQ＞PR?(1)x=y(2)y=z
单选题Foragroupofnpeople,kofwhomareofthesamesex,theexpressionyieldsanindexforacertainphenomenoningroupdynamicsformembersofthatsex.Foragroupthat,consistsof20people,4ofwhomarefemales,byhowmuchdoestheindexforthefemalesexceedtheindexforthemalesinthegroup?
单选题Is the integer n a multiple of 140?
(1) n is a multiple of 10.
(2) n is a multiple of 14.
单选题Thehexagonalfaceoftheblockshowninthefigureabovehassidesofequallengthandanglesofequalmeasure.Ifeachlateralfaceisrectangular,whatisthearea,insquareinches,ofonelateralface?
单选题A certain company has records stored with a record-storage firm in 15-inch by 12-inch by 10-inch boxes. The boxes occupy 1.08 million cubic inches of space. If the company pays $0.25 per box per month for record storage, what is the total amount that the company pays each month for record storage?
单选题What is the volume of a certain rectangular solid?
(1)Two adjacent faces of the solid have areas 15 and 24, respectively.
(2)Each of two opposite faces of the solid has area 40.
单选题 LEAGUE RESULTS Team Number of Games Won A 4 B 7 C 9 D 2 E 2 X According to the incomplete table above, if each of the 6 teams in the league played each of the other teams exactly twice and there were no ties, how many games did team X win? (Only 2 teams play in a game.) (A) 4 (B) 5 (C) 6 (D) 8 (E) 10
单选题Caterpillars off all species produce an identical hormone called "juvenile hormone" that maintains feeding behavior. Only when a caterpillar has grown to the right size for pupation to take place does a special enzyme halt the production of juvenile hormone. This enzyme can be synthesized and will, on being ingested by immature caterpillars, kill them by stopping them from feeding.
Which of the following, if true, most strongly supports the view that it would not be advisable to try to eradicate agricultural pests that go through a caterpillar stage by spraying croplands with the enzyme mentioned above?
单选题If n is a positive integer and k+2=3n, which of the following could NOT be a value of K?