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问题：单选题If 7/x+2/y=7 and xy=4, then 7y+2x= ______.A 28B 14C 7/4D 4/77E 2/7...
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问题：单选题Though dentists recommend brushing one’s teeth three times a day, many adult Americans brush just twice a day and floss hardly never.A brush iust twice a day and floss hardly neverB brush your teethtwice and never flossC brush just twice but rarely flo...
问题：单选题When Brad offered his old wooden desk at a garage sale, no one bought it, even though he offered it for only $10. When he offered it at the local auction house, however, someone bought it for $850. Which of the following, if true, best explains why Br...
问题：单选题A community college is experiencing high turnover rates among its computer science faculty members. To rectify this problem, the computer science department head has proposed to the dean that beginning next year starting salaries for computer science i...
问题：单选题The main purpose of this passage is to ______.A Trace the historical progression of tea from its origins to the present day.B Give brief highlights from the history of the cultivation of tea.C Provide an anecdotal account how tea became a drink.D Highl...
问题：单选题Which of the following best expresses the purpose of this passage?A To explain how a loophole in the Clean Air Act allows power plants to avoid compliance with emissions restrictionsB To raise awareness of the problems caused by sulfur dioxide emission...
问题：问答题Is r (1) r0 (2) r21...
问题：问答题Do at least 20 percent of the people in country X who are over the age of 25 possess a college diploma? (1) In country X, among the population over the age of 25, 26 percent of the male population and 16 percent of the female population possess colleg...
问题：问答题Any decimal that has a finite number of nonzero digits is a terminating decimal. For example, 16, 12.43, and 0.26 are all terminating decimals. If a and b are positive integers and the ratio a／b is expressed as a decimal, is a／b a terminating decimal? ...
问题：单选题An American manufacturer of space heaters reported a 1994 fourth-quarter net income (total income minus total costs) of $41 million, compared with $28.3 million in the fourth quarter of 1993. This increase was realized despite a drop in U.S. domestic r...
问题：问答题A certain salad dressing made only of oil and vinegar is premixed and sold in the grocery store. What is the ratio of oil to vinegar in the mix? (1) An 18.6-ounce bottle of the salad dressing contains 12.4 ounces of vinegar. (2) In a 32-ounce bottle ...
问题：问答题What was the percent decrease in the price of MegaTek (MGTK) stock during the market decline of March 1, 2001, to March 1, 2002? (1) The price of MGTK was $56.20 on March 1, 2001. (2) The price of the stock on January 1, 2002, was only one-quarter of...
问题：单选题Two boards are being cut for a construction project. If the total length of the boards is 100 inches and the shorter board is 5 inches less than half the length of the longer board, what is the length of the shorter board?A 25 inchesB 30 inchesC 35 inc...
问题：问答题Is s=r? (1) s2=r2 (2) s is positive....
问题：单选题In the passage, the author is primarily interested in ______.A suggesting an alternative to an out-dated research methodB introducing a new research method that calls an accepted theory into questionC emphasizing the instability of data gathered from t...
问题：问答题If C=5r/(2s) and s≠0, what is the value of C? (1) r=4s (2) r=2/5...
问题：单选题Advertisement: The most flavorful olives in the world are kalamata olives. The more kalamata olives used to make a bottle of olive oil, the more flavorful the oil, and no company buys more kalamata olives than Zorba’s Olive Oil. Therefore, when you buy...
问题：What was the percent decrease in the price of MegaTek (MGTK)...
问题：At the MegaTek Corporation, an inexperienced financial analy...
问题：单选题The author of the passage most likely mentions “Little Green Men” in the first paragraph for what purpose?A To poke fun at the ignorance of most science fiction readersB To introduce a daunting challenge that will have to be addressed before human inte...
