(Question)
Since the 1970s, scientists have been searching for ways to connect the brain with computers. Braincomputer interface(BCI) technology could help people with disabilities send commands to machines. Recently, two scientists, Jose Millan and Michele Tavella from the Federal Polytehnic School in Lausanne, Switzerland, show a small robotic wheelchair directed by a person's thoughts. In the laboratory, Tavella operated the wheelchair just by thinking about moving his left or right hand. He could even talk as he watched the vehicle and guided it with his thoughts. "Our brain has billions of body cells . These send signals through the spinal cord to the body part to give us the ability to move. But spinal cord injuries or other conditions can prevent these weak electrical signals from reaching the body part." Tavella says. "Our system allows disabled people to communicate with outer world and also to control machines." The scientists designed a special cap for the user. This head cover picks up the signals from the scalp and sends them to a computer. The computer finds meanings of the signals and commands the wheelchair with an engine. The wheelchair also has two cameras that tell objects in its path. They help the computer react to commands from the brain. Prof. Millan , the team leader, says scientists keep improving the computer software that finds meanings of brain signals and turns them into simple commands." The practical possibilities that BCI technology offers to disabled people can be grouped in two kinds: communication, and controlling objects. One example is this wheelchair." He says his team has set two goals. One is testing with real patients, so as to prove that this is a technology they can get advantages from. And the other is sure that they can use the technology for long. The team will test with real patients to _ . A) make money from them B) prove the technology useful to them C) make them live longer D) learn about their physical condition
(Answer)
B

(Question)
I am Bill.I am an English teacher.My wife is Linda.She is a nurse. We have a daughter and a son. Look! These are my friends.This is Mr Black.He's a worker.He works in a shoe factory .He makes shoes.That's Mrs Black.She works in a supermarket .The girl is their daughter.She's a student.She's thirteen.The boy is their son.He is only seven years old.His name is Carl. We are good friends. How old is Mr.Black's daughter? A) She's a student. B) She's thirteen. C) She's seven. D) We don't know.
(Answer)
B

(Question)
17-year-old Tibetan boy climbs 40 meters up a tall tree only to get some honey as an ingredient for a traditional local drink. The money he makes from selling the honey will be used to pay for his younger brother's tuition fee . This is only a scene from the first episode of CCTV's new documentary, A Bite of China 2(2), which appeared on April 18, 2014. But they are enough reasons for viewers to spend an hour every Friday until June 6 enjoying in front of their television sets. Viewers have had to wait a long time since A Bite of China 1 came out in 2012. Back then, the seven-episode documentary was considered the best one ever produced by CCTV, with its good effects and rich food culture. A famous foreigner praised it, saying "it's the best TV show I've ever seen about food. I'm sure it's the best one ever made. " The new season includes eight episodes, covering 300 types of food. According to CCTV, every minute of the show was edited out of 150 minutes of footage . Finding their subjects was often the hardest part of the film team's job. It took them six months to film a beekeeping couple , which included a journey of more than 2,000 kilometers. Food is a personal thing, in that no dish suits all tastes. However, the program has still managed to move all sorts of viewers. "Compared with A Bite of China 1, the new season has a more human touch, which makes viewers cover some tears while their mouths are watering," said Sina Entertainment. As always, the people are the most interesting part. A Bite of China 2 shows a greater dream--through homemade food, it tells the joys and _ of common Chinese in changing times, according to director Chen Xiaoqing of the documentary series . "I was moved by the people in each simple story," said Li Weifang, 17, of Beijing No 3 High School. "Their work helps enrich China's food culture. " In fact, that is exactly what the new season hopes to deliver . Through the program, "the listeners will see the characteristics of the Chinese people: save and tenacity ," Chen told... When did A Bite of China 2 appear on CCTV? A) From 2012. B) From April 18, 2014. C) Until June 8, 2014. D) Every Friday through the coming year.
(Answer)
B