Discouraged by new data that show increases in toxic emissions from domestic factories, searches for alternative investment opportunities are being conducted by shareholders of the nation`s leading manufacturing companies.
来源：Manhattan 50人已做 650难度 72%正确率
Since the Italian government began a crackdown on the black market in the 1970's, the amount of looted antiquities smuggled out of Italy dropped by a 50 percent decline.
来源：Manhattan 25人已做 600难度 88%正确率
Unlike lions and tigers, which can be roaring by causing its hyoid bones to vibrate, domestic cats have fixed hyoid bones and are therefore unable to roar.
来源：Manhattan 33人已做 650难度 69.7%正确率
Human activity on the continent of Antarctica is regulated by the Antarctic Treaty, which was signed in 1959 by 12 countries and prohibits any military activity, supports scientific research, and is giving protection to the continent's ecozone.
来源：Manhattan 39人已做 650难度 66.7%正确率
On any city street in today's world one will encounter more women who wear pants than skirts, yet, just two or three generations ago, when police forced actress Marlene Dietrich to leave Paris in 1945, for she had dared to wear pants on the street.
来源：Manhattan 23人已做 其他难度 65.2%正确率
Although amyotrophic lateral sclerosis, or ALS, typically causes death within 3 to 5 years of the onset of symptoms, on average, the famous physicist Stephen Hawking has defied the odds, in contrast, by living more than 40 years after his initial diagnosis.
来源：Manhattan 29人已做 680难度 69%正确率
The recent global boom in the market price for scrap steel and aluminum leads to a sudden rise in the theft of everyday metal objects like manhole covers, guard rails, and empty beer kegs.
来源：Manhattan 21人已做 其他难度 81%正确率
Red-light cameras, originally implemented in an attempt at increasing the safety of intersections, have been precisely the opposite: drivers are afraid of expensive citations and often brake suddenly as they approach camera-equipped intersections, so they cause rear-end accidents.
来源：Manhattan 23人已做 其他难度 56.5%正确率
Parents are concerned not only with finding good schools for their children, but they have to know what makes one better than another.
来源：Manhattan 21人已做 其他难度 85.7%正确率
In preparation for the cold winter months, during the summer, it was the usual custom for prehistoric people to gather and preserve, with smoke or by salting it, as much meat as they could.
来源：Manhattan 22人已做 其他难度 86.4%正确率
If the area of the triangle above is 35,what is the value of k?*此题无图，可跳过
If a and b are positive integers such that a – b and a/b are both even integers, which of the following must be an odd integer?
Sulfur dioxide, a major contributor to acid rain, is an especially serious pollutant because it diminishes the respiratory system’s ability to deal with all other pollutants.
More than 300 rivers drain into Siberia's Lake Baikal, which holds 20 percent of the world's fresh water, more than all the North American Great Lakes combined.
So dogged were Frances Perkins’ investigations of the garment industry, and her lobbying for wage and hour reform was persistent, Alfred E. Smith and Franklin D. Roosevelt recruited Perkins to work within the government, rather than as a social worker.
Each of the students in a certain class received a single grade of P, F, or I. What percent of the students in the class were females? (1) Of those who received a P, 40 percent were females. (2) Of those who received either an F or I, 80 percent were males.
Given a positive number N, when N is rounded by a certain method (for convenience, call it Method Y), the result is if and only if n is an integer and .In a certain gas sample, there are, when rounded by Method Y, molecules of H2 and also molecules of O2. When rounded by Method Y. what is the combined number of H2 and O2 molecules in the gas sample?(1) The number of H2 molecules and the number of O2 molecules are each less than (2) The number of H2 molecules is more than twice the number of O2 molecules
If x is a positive integer, how many positive integers less than x are divisors of x?(1)x2 is divisible by exactly 4 positive integers less than x2 (2)2x is divisible by exactly 3 positive integers less than 2x.
Officials at the United States Mint believe that the Sacagawea dollar coin will be used more as a substitute for four quarters rather than for the dollar bill because its weight, only 8.1 grams, is far less than four quarters, which weigh 5.67 grams each.
According to the passage, which of the following is probably true of the storage spaces mentioned in highlight ?