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题目： Those who maintain that technology is negatively rewiring our brains have several common targets: GPS devices eroding our ability to conceptualize space, the many hyperlinks of the Internet driving us to distraction, and with our smartphones our working memory is impaired when doing something as fundamental as recalling a string of digits.

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题目： The people of the ancient Near East believed that the Earth's dry land first appeared when the Creator separated the "water above" from the "water below", and that there is another ocean in the sky, above the firmament.

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题目： At approximately 22 weeks, a fetus becomes fully covered by lanugo, or a fine, soft hair that insulates the body until fat deposits accumulate in the wrinkles of the skin, often remaining until birth.

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题目： Organizers claimed that the rally for public health care drew close to half a million people, but the city officials estimated the amount of people at the rally to be less than 300,000.

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题目： Which of the following is closest to $${10}^{180}-{10}^{30}$$ ?

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题目： $${C}{n \choose m}=\frac{m!}{[(m-n)!n!]}$$ for nonnegative integers m and n, $$m \ge n$$. If $${C}{3 \choose 5}={C}{x \choose 5}$$ and $$x \neq 3$$, what is the value of x?

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题目： The temperatures in degrees Celsius recorded at 6 in the morning in various parts of a certain country were 10°, 5°, -2°, -1°, -5°, and 15°. What is the median of these temperatures?

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题目： The sequence $$a_1$$, $$a_2$$, $$a_3$$.....$$a_n$$...is such that $$a_n=\frac{a_{n-1}+a_{n-2}}{2}$$ for all $${n}\ge{3}$$. If $${a}_{3}$$=4 and $${a}_{5}$$ = 20, what is the value of $${a}_{6}$$ ?

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题目： If $${2}{x}^{2}-{y}^{2}={2}{x}{y}$$, then $$({x}+{y})^{2}=$$

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题目： If x, y,and z are positive integers, is xz even?(1)xy is even.(2)yz is even.

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题目： Epidemiologist: Malaria passes into the human population when a mosquito carrying the malaria protozoa bites a human who has no immunity. The malaria parasite can remain for up to forty days in the blood of an infected person. The disease cannot be passed from person to person, unless a non-infected person is exposed to the blood of an infected person. Theoretically, malaria could be eradicated in any given area, if all the mosquitoes carrying malaria in that area are exterminated. If such a course of action is carried out at a worldwide level, then the global eradication of malaria is possible. Which of the following, if true, suggests that the epidemiologist's plan for eliminating malaria is not viable?

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题目： The TJ-700 and the Beta Turbomax are two models of cars of different manufacturers. These two models have almost identical specifications and features, and they sell for almost the same price. Both were introduced on the market five years ago, and each year, the respective manufacturers spend about the same amount in advertising. In the past five year, the total number of TJ-700's sold is about 80% greater than the total number of Beta Turbomax's sold. Clearly, the advertising firm that created TJ-700 ads created much more effective ads than the firm that created Beta Turbomax ads. In evaluating the argument, it would be most useful to know which of the following?

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题目： From 2005 to 2009, over 80% of graduates from Zenith University were able to secure employment within their first six weeks of graduation. Prospective engineering students should therefore choose Zenith University, if they want to be employed within six weeks of graduating. Which of the following, if true, would most strengthen the argument?

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题目： A large number of famous poets in literary history have died under the age of 40 --- Burns, Byron, Keats, Poe, and Shelley, to name a few. By contrast, the large majority of famous painters in art history lived well beyond the age of 40. This difference between famous poets and famous painters is most likely because ____ Which of the following, if true, most logically completes the argument?

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题目： If w and c are integers, is w > 0?(1)w + c > 50(2)c>48