来源：

题目： What is the value of $${1}\over{x + 4}?$$Statement #1: 4.375x – 6.25 = 11.25Statement #2:$${{1}\over{x+8}}-\frac{1}{48}=\frac{1}{16}$$

来源：

题目： Was the average (arithmetic mean) weight of the package mailed at a certain post office yesterday greater than 600 grams?(1) The total weight of the packages mailed at the post office yesterday was greater than 14,500 grams.(2) Fewer than 25 packages were mailed at the post office yesterday.

来源：

题目：

Alaska regularly deposits some of its profits from the sale of oil into a special fund, with the intention to sustain the state's economy after the exhaustion of its oil reserves.

来源：

题目：

Building large new hospitals in the bistate area would constitute a wasteful use of resources, on the basis of avoidance of duplicated facilities alone.

来源：

题目：

When an active tooth in the shark's jaws is lost or worn down, many spare teeth lie in seemingly limitless reserve, each of which are ready to slide into the appropriate position.

来源：

题目：

Whereas lines of competition are clearly defined in the more established industries, in the Internet industry they are blurred and indistinct, as companies that compete one day may be partners the next.

来源：

题目：

The Arthritis Research Institute of America advises women of color that they have twice the likelihood to get osteoarthritis of the knee as do White women.

来源：

题目：

Research during the past several decades on the nature of language and the processes that produce and make it understandable has revealed great complexity instead of underlying simplicity.

来源：

题目： For each values of y greater than $$2\sqrt3$$, the function f(x) is such that the equation f(x)=y has the form $$x=\frac{(y^2+12)}{y}$$.Select one value for a and one value for b such that the given information implies f(a)=b. make only two selections, one in each column.

来源：

题目： For each of the years 2000, 2003, 2006, and 2009, the graph shows the carbon dioxide emissions produced by the consumption of petroleum for 9 countries. Emissions are measured in millions of metric tons of carbon dioxide, where 1 million= 10^6From each drop-down menu, select the option that creates the most accurate statement based on the information provided.Median carbon dioxide emissions for the 9 countries increased by [s[0]] million metric tons from 2000 to 2009.In 2006, the range of carbon dioxide emissions for the 9 countries was approximately [s[1]] million metric tons.

来源：

题目： It can be inferred from the passage that which of the following was true of seamstresses employed by relatives who were members of the tailors' guild?

来源：

题目： If $${x}^{3}{y}^{4}={5000}$$, is y = 5? (1) y is a positive integer. (2) x is an integer.

来源：

题目：

New genetic evidence-together with recent studies of elephants' skeletons, tusks, and other anatomical features-provide compelling support for classifying Africa's forest elephants and its savanna elephants as separate species.

来源：

题目： An integer between 1 and 300, inclusive, is chosen at random. What is the probability that the integer so chosen equals an integer raised to an exponent that is an integer greater than 1?

来源：

题目：

The example presented by the author in highlight text most clearly serves to illustrate