GMAT考试易错题(2019/3/25) |
第1题:To be considered gradeAA, an egg must weigh between 75 and 90 grams, including the shell. Shells of gradeA A、eggs weigh between 3 and 5 grams. What is the smallest possible mass, in grams, of a 12-egg omelet, assuming that only gradeA A、eggs are used, the shells are all discarded, and no mass is lost in the cooking process A、800 B、840 C、864 D、900 E、1,080 |
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第2题:The questions in this group are based on the content of a passage.After reading the passage, choose the best answer to each question,Answer all questions following the passage on the basis of what is stated or implied in the passage. Forget hostile aliens.According to a forthcoming book by noted astrophysicistEgbert Larson, the intrepid humans who first attempt interstellar space travel will face far more daunting challenges before they ever meet the Little Green Men. Larson begins with the problem of relativistic time dilation. If you travel all the way toAlphaCentauri, you’d like to come back and tell your friends about it, right It’s not too likely to happen, though. If Mr.Einstein was right about relativity--and we’re not going to say he wasn’t--then time slows down when you approach the speed of light.A、person traveling at any velocity near the speed of light will age only days for every week, month, or even year that passes on earth. Relativity does not present a problem for interstellar space travel, per se, but it does mean that interstellar civilizations or even just interstellar communications will require a mind-boggling amount of calendar juggling. Did we mention that you’d have to travel at near the speed of light That’s because the distance between stars is so vast that even if you could travel at the speed of light--which, Larson reminds us, you can’t--it would take more than four years to reach our closest star neighbors,Alpha Proxima andAlphaCentauri, and decades or centuries to reach the other stars in our "immediate neighborhooD、"And if you tried to accelerate directly to the speed of light like they do in the movies, you’d be instantly splattered on the back of your theoretical spacecraft.Achieving anything close to light speed will require sustained accelera- tion at a level that human bodies can withstand--say, a crushing two gravities--for over a year.Better hope somebody brings some chips. Speaking of chips, food is going to be a problem. Since it is economically, if not physically, impossible to accelerate 200 years’ worth of food to nearly the speed of light, and since you’re not likely to find any grocery stores along the way, someone will have to figure out how to make food in space. Keeping a crew alive on the way turns out to be the trickiest part of all. Once you’ve got the nearly impossible physics of space travel worked out, you still have to figure out the chemistry and biology of keeping your air and water clean and keeping your crew fed and safe from radiation and infection, and--did we mention the 200 years --you’ll probably need several generations of crew members to complete the trip.Ever been on a bus for more than 24 hours It’s not a pretty picture. We applaud Larson for his insightful writing and his scrupulous attention to scientific detail. For those of you seeking a cold, hard look at the reality of interstellar space travel, this is a stellar reaD、But be warned: Larson doesn’t let you down gently. For those of you sincerely hoping to beam up with Scotty--and you know who you are--you might want to give this one a pass. Which of the following inventions, if it could be perfected and manufactured at a viable cost, would address the most challenges to human interstellar space travel, as presented in the passage A、A、ram-scoop drive that can accelerate a spacecraft of any size to four-fifths of the speed of light within 24 hours B、A、cold-sleep capsule that essentially halts the passage of time for human inhabitants while protecting them from all physical harm C、A、sustainable biosphere that reliably generates healthy food and automatically cleans air and water D、A、neutrino-based communications system that permits instantaneous communication across any distance without any relativistic time dilation E、An impervious force field that protects the ship and its inhab |
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第3题:Withitsabundanceofnouninflections,IcelandicisoneofseveralGermaniclanguagesthatiscompactwhenwrittenbutcanlengthenconsiderablywhentranslatedintoEnglish.() (A)iscompactwhenwrittenbutcanlengthenconsiderablywhentranslatedintoEnglish (B)arecompactwhentheyarewritten,buttheycanlengthenconsiderablywhentheyaretranslatedinEnglish (C)iscompactwhenwrittenbutcanlengthenconsiderablywhenbeingtranslatedintoEnglish (D)arecompactwhenwrittenbutcanlengthenconsiderablyinEnglishtranslation (E)iscompactwhenitiswrittenbutcanlengthenconsiderablywhentranslatedinEnglish |
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第4题:The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether A、 Statement (1)ALONE、is sufficient, but statement (2) alone is not sufficient. B、 Statement (2)ALONE、is sufficient, but statement (1) alone is not sufficient. C、BOTH statements TOGETHER are sufficient, but NEITHER statementALONE、is sufficient. D、EACH statementALONE、is sufficient. E. Statements (1) and (2) TOGETHER are NOT sufficient. Is rs=rx-2 (1) r is an odd number (2) x=s+2 |
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第5题: A、type of extra-large SUV averages 12.2 miles per gallon (mpg) on the highway, but only 7.6 mpg in the city. What is the maximum distance, in miles, that this SUV could be driven on 25 gallons of gasoline A、190 B、284.6 C、300 D、305 E、312 |
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