来源： 5082人已做 650难度 68%正确率
来源： 6501人已做 680难度 56.7%正确率
来源： 2128人已做 700难度 76.1%正确率
Community activist; If Morganville wants to keep its central shopping district healthy, it should prevent the opening of a huge SaveAII discount department store on the outskirts of Morganville, Records from other small towns show that whenever SaveAII has opened a store outside the central shopping district of a small town, within five years the town has experienced the bankruptcies of more than a quarter of the stores in the shopping district. The answer to which of the following would be most useful for evaluating the community activisfs reasoning?
来源：逻辑分类考点 1547人已做 650难度 74%正确率
来源： 2046人已做 680难度 63.2%正确率
Which of the following most logically completes the argument given below? People in isolated rain-forest communities tend to live on a largely vegetarian diet, and they eat little salt. Few of them suffer from high blood pressure, and their blood pressure does not tend to increase with age, as is common in industrialized countries, Such people often do develop high blood pressure when they move to cities and adopt high-salt diets. Though suggestive, these facts do not establish salt as the culprit in high blood pressure, however, because_______ .
来源： 1392人已做 600难度 76.7%正确率
来源： 9169人已做 650难度 70.1%正确率
来源： 2489人已做 680难度 75.7%正确率
来源： 3145人已做 650难度 85.8%正确率
来源： 2833人已做 650难度 65.1%正确率
Sasha: It must be healthy to follow a diet high in animal proteins and fats. Human beings undoubtedly evolved to thrive on such a diet, since our prehistoric ancestors ate large amounts of meat. Jamal: But our ancestors also exerted themselves intensely in order to obtain this food, whereas most human beings today are much less physically active. Jamal responds to Sasha by doing which of the following?
【OG20-P289-410题】If r and s are positive integers, can the fraction r/s be expressed as a decimal with only a finite number of nonzero digits?(1) s is a factor of 100.(2) r is a factor of 100.
【OG20-P181-228题】How many of the integers that satisfy the inequality (x+2)(x+3)x−2 ≥0 are less than 5？
If ab ≠ 0 and points (-a, b) and (-b, a) are in the same quadrant of the xy-plane, is point (-x, y) in this same quadrant?(1) xy > 0(2) ax > 0
【OG18-P162-111题】At a certain instant in time, the number of cars, N, traveling on a portion of a certain highway can be estimated by the formula N= 20Ld600+s2 where L is the number of lanes in the same direction, d is the length of the portion of the highway, in feet, and s is the average speed of the cars, in miles per hour. Based on the formula, what is the estimated number of cars traveling on a 1/2 mile portion of the Highway if the highway has 2 lanes in the same direction and the average speed of the cars is 40 miles per hour? (5,280 feet =1mile)
Since the 1930s aircraft manufacturers have tried to build airplanes with frictionless wings, shaped so smoothly and perfectly that the air passing over them would not become turbulent.
【OG20-P562-610题】 Arts advocate: Few universities require that students who are specializing in science and technology take many art courses.However, real progress in science and technology requires an element of creativity,which the arts foster. Thus,to help science and technology students succeed in their careers, universities should increase the number of art courses required for them.Which of the following would,if true, most strengthen the argument above?
【OG20-P585-685题】A company has developed a new sensing device that, according to the company's claims, detects weak, ultralow-frequency electromagnetic signals associated with a beating heart. These signals, which pass through almost any physical obstruction, are purportedly detected by the device even at significant distances. Therefore, if the company’s claims are true, their device will radically improve emergency teams ability to locate quickly people who are trapped within the wreckage of collapsed buildings. Which of the following, if true, most strengthens the argument?
【OG20-P814-903题】In the major cities of industrialized countries at the end of the nineteenth century,important public places such as theaters,restaurants,shops,and banks had installed electric lighting ,but electricity was in less than 1 percent of homes,where lighting was still provided mainly by candles or gas.
Any decimal that has only a finite number of nonzero digits is a terminating decimal. For example, 24, 0.82, and 5.096 are three terminating decimals. If rand s are positive integers and the ratio r/s is expressed as adecimal, is r/s aterminating decimal?(1) 90＜r＜100(2) s = 4