(Question)
Read the following article and select the best answer. Article: The physicians in a hospital form the center of medical staff. But they could not provide effective medical care to their patients without the help of numerous other medical employees. From the viewpoint of the patients, the nursing staff is particularly important. Nurses are usually in close contact with patients as long as they are in the hospital. A nurse does not study for as many years as a doctor. however, each must be equally dedicated. Caring for sick persons requires a great deal of patience and concern. Most nurses work long days, and they often must work at odd hours or during the night. Under the supervision   of the head nurse, the nursing staff must provide nursing services on a 24-hour basis and attend to patients' needs. This responsibility continues around the clock, and so nurses must work in shifts. A shift is a period of duty, usually eight in length. The nurses on the ward rotate their shifts. Some take turns working night duty; others work odd shifts. A nurse must always be alert. She can never afford to be careless. This is true in all nursing situation, but it is especially true in the intensive care unit. Patients under intensive care are critically ill, and they must be monitored at all times. The nurses who do intensive care duty have one of the most demanding jobs in the hospital. Serving as a nurse can be a very rewarding job. But it is not an easy one. Not every person is suited to become a nurse. Only very dedicated people have chosen nursing as a profession. Question: Why don't nurses study for as many years as doctors? - They don't treat patients for illness and injury. - Most nurses work long days. - Caring for sick patients requires patience and concern. - They are not dedicated.
(Answer)
They don't treat patients for illness and injury.


(Question)
Read the following article and select the best answer. Article: Severely disabled people may soon be able to use their noses to write, drive a wheelchair or surf the Internet, thanks to a device   developed by doctors in Israel. The device will be used by breathing in and out through the nose, according to a study. Healthy people who tested the device quickly learned to play computer games and write sentences by sniffing. Encouraged by the results, the researchers decided to test their device on people who are paralyzed   but whose intelligence remains normal. Ten paralyzed who tested the device quickly learned to use their noses to write words, open a webpage, copy words and put them into a search engine. With their success in helping severely disabled people to communicate * the researchers decided to make use of the new technology to design an electric wheelchair to be driven by sniffs. Ten healthy people easily mastered sniff--driving a wheelchair through a maze  , and a 30-year-old man who had been paralyzed from the neck down for six years was as good a sniff-driver as the healthy participants at his second attempt. In other words, a paralyzed person could use the sniff controller to drive an electric wheelchair. At the moment, sniff-controlled technology is still in the stage of development, and the Weizmann Institute has already applied for a patent on the device. "Ill be very happy if it can help us to make money, but the real problem is that I hope someone will develop it, because this would help a lot of people," said Sobel, one of the lead researchers of the study. Question: With the help of the sniffing device, a 30-year-old disabled man   _  . - spent six years learning how to drive a wheelchair - failed to drive through the maze at his first attempt - took the wheelchair controlled by healthy participants - managed to drive an electric wheelchair by sniffing
(Answer)
managed to drive an electric wheelchair by sniffing


(Question)
Read the following article and select the best answer. Article: Even as Google plans to test its fleet   of self-driving cars on public roads this summer, its business model remains a bit of a mystery. By 2025, as many as 250,000 self-driving vehicles could be sold each year globally, according to a study by an industry research firm. "Vehicles that can take anyone from A to B at the push of a button could transform mobility for millions of people," said Chris Urmson, director of Google's self-driving car project. For now, Google has no plans to sell any of its self-driving cars. They are strictly for research. But they will hit public roads this summer near Google's headquarters in Mountain View, California. Previous testing has taken place only on closed courses. The cars are built to operate without a steering wheel, accelerator   or brake pedal. "Our software and sensors do all the work," Urmson said. "The vehicles will be very basic -- we want to learn from them and adapt them as quickly as possible -- but they will take you where you want to go at the push of a button." The prototype   are the first of a 100-car fleet the tech giant is building. In the long run, Urmson sees a future of safer roads -- the majority of auto accidents are caused by human error -- and fewer traffic jams. Robotic cars could also shuttle people who can't drive because of age or illness.  Google has said that self-driving cars could launch new business models in which people buy the use of vehicles they don't own. The company has already tested other types of self-driving cars on public streets, including modified Lexus sport-utility vehicles, under a special permit program by the California Department of Motor Vehicles that requires a human driver at the controls. The state has issued six other companies permits to operate such cars, including Delphi, Mercedes-Benz, Volkswagen, Tesla, Bosch and Nissan. The vehicles that will be tested on open roads this summer will have removable steering wheels, accelerators and brake pedals to allow "safety drivers" to take control if needed. Google says... Question: According to Chris Urmson,   _  . - self-driving cars can give driving orders to humans - software and sensors are vital for self-driving cars - self-driving cars are specially designed for the elderly - ordinary vehicles will be replaced by self-driving cars
(Answer)
