(Question)
Before the early 1960's people interested in the differing roles of the left and right hemispheres of the brain depended almost entirely on facts drawn from animal research, form studies of patients with one-sided brain damage. But it was possible to find out which brain hemisphere was most involved in speech and other functions in normal people by having them listen to two different words coming to the two ears at the same time. This became known as the "dichotic listening" procedure. When several word pairs are given in a row, people are unable to report them all, and most right-handers prefer to report, and report more correctly, words given to their right ears. This seems to be related to the fact that signals from the right ear, although sent to both hemispheres, are better sent to the left hemisphere which controls speech. People who have speech represented in the right hemisphere, a very unusual occurrence even in left-handed people, more correctly report what their left ears hear. In contrast to the right-ear advantage for speech, there is generally a left-ear advantage for another type of auditory signal: music. When right-handed people listen to melodic patterns they report them better from the left ear. The "dichotic listening" procedure could best be described as hearing _ . A) two different words in the same ear twice B) the same word twice in the same ear C) two different words in different ears D) two different words twice in two ears
(Answer)
C

(Question)
On a Saturday morning earlier this September, the world got its first look at the Strati. This electric vehicle is unlike any other currently on the road. It rolls on four wheels, but its body and chassis weren't built in a factory. Instead, Strati's designers used a technology called 3-D printing. It created those parts of the car in one piece, from the ground up. "Compared to a typical vehicle on the road, the Strati definitely looks different," says Greg Schroeder, a senior research engineer at the Center for Automotive Research in Ann Arbor, Mich. He did not work on the new car. His organization studies trends and changes in the auto industry. It took 44 hours to print the new car at the International Manufacturing Technology Show in Chicago. Over the next few days, the car's designers installed additional parts. These included the car's engine, brakes and tires. Then, early on September 13, Jay Rogers climbed into the car, started its engine and drove the vehicle onto the street. Rogers helped found Local Motors. It's the Arizona-based company behind the Strati. Two weeks later, his team printed a second Strati, and just as fast, at a fair in New York City. Justin Fishkin, a local Motors official, sees the Strati as a window into the future. Today, car buyers are limited in their choice of a vehicle. They can order only what car companies have already designed. But in the future, he says, you may be able to design your own car online and then get it printed to order. Manufacturing experts say 3-D printing has begun to revolutionize how they make things. The technology has been around for decades. But these machines used to be so expensive that only large companies could afford them. In the last few years, though, that has changed. Many of the machines are now inexpensive enough for small companies--or even individuals --to own. Some local libraries make them available to the public. High Schools are beginning to use them in classrooms. Wide access to these printers means people can now design and print... Why did Lonnie Love make efforts to improve 3-D printing with his team? A) Because additive manufacturing might produce unreliable materials. B) Because he just was interested in making new things. C) Because he just wanted to build new machines and test them D) Because additive manufacturing is always slow but inexpensive.
(Answer)
A

(Question)
Being able to call on the old boy's network helps you get your foot in the door,but has little impact on your later success.Having good connections does change your possibility of being offered a higher wage when you start working,but has no impact on your eventual wage.Coming from a wealthy background has little impact on lifetime earnings.Over time,brain power soon overtakes ,and intelligence is the factor,which will determine your earnings and success.The speed of your rise through the ranks is determined largely by your own intelligence. The study monitored earnings and promotions over the course of 25 years.Scores were used to assess the SocioEconomic Background(SEB)-wealth and connections-and standard Army intelligence tests used to assess intelligence.The study is sure to infuriate those angered by wealthy groups such as Oxford's upper-crust Bullingdon Club,of which both David Cameron and Borris Johnson were members. Professor Yoav Ganzach says that these findings have a positive message for those,who can't rely on nepotism for their first job."Your family can help you start your career and you do get an advantage,but it doesn't help you progress.And once you start working,you can go wherever your abilities take you," he says.When intelligence and SEB are pitted directly against once another ,intelligence is a more accurate predictor of future career success,he say. What's the main idea of the passage? A) Earnings and promotions are up to your own. B) A study conducted by Professor Yoav Ganzach. C) SEB is very important in one's first career. D) Success is determined by your own brain power.
(Answer)
D