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题目： Based on information in the passage, it can be inferred that the author believes that countries similar to the United States in terms of environmental policy

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题目： The author implies that a country described as a "tortoise" is more likely to favor

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题目： The theory offered in the second paragraph differs most from Miller's theory in regards to the

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题目： According to the passage, an arctic curlew suffering navigational issues is most consistent with which of the following?

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题目： Which of the following is the primary purpose of the passage?

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题目：

Although most smoking-related illnesses are caused by inhaling the tar in tobacco smoke, it is addiction to nicotine that prevents most smokers from quitting. In an effort to decrease the incidence of smoking-related illnesses, lawmakers in Sandonia plan to reduce the average quantity of nicotine per cigarette by half over the next five years. Unfortunately, smokers who are already addicted to nicotine tend to react to such reductions by smoking correspondingly more cigarettes.

The information above most strongly supports which of the following predictions about the effects of implementing the Sandonian government's plan?

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题目：

Antarctica receives more solar radiation than does any other place on Earth, yet the temperatures are so cold and the ice cap is reflective, so that little polar ice melts during the summer; otherwise, the water levels of the oceans would rise 250 feet and engulf most of the world's great cities.

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题目： In the xy-plane, point (r, s) lies on a circle with center at the origin. What is the value of $${r}^{2}+{s}^{2}$$?(1)The circle has radius 2.(2)The point $$(\sqrt 2$$, $$-\sqrt2)$$ lies on the circle.

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题目： Working alone at their respective constant rates, machine A and machine B can fill a certain order in 3 hours and 6 hours, respectively. If the two machines work simultaneously at their respective constant rates, how many hours does it take the two machines to fill 1/2 of that order?

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题目： Three pieces of wire have an average (arithmetic mean) length of 39 inches and a median length of 48 inches. What is the maximum possible length, in inches, of the shortest piece of wire?

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题目： If the two-digit integers M and N are positive and have the same digits, but in reverse order, which of the following CANNOT be the sum of M and N ?

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题目： If $${P}({r})={8}\frac{r}{1-r}$$, for what value of r does $${P}({r})=\frac{1}{2}{P}(3)$$?

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题目： The age of the Earth is approximately $${1.3}*{10}^{17}$$ seconds, and one year is approximately $${3.2}*{10}^{7}$$ seconds. Which of the following is closest to the age of the Earth in years?

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题目： The surface of a certain planet reflects 80 percent of the light that strikes it. The clouds around the planet then absorb 40 percent of the reflected light. What percent of the light that strikes the planet is reflected from the surface and passes through the clouds without being absorbed?

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题目： Is |x| =y-z?(1)x+y=z(2)x < 0