Q: Read the following article and answer the question. Article: Albert Einstein died long ago. However, a group of researchers have created a robot which looks like the great scientist. The robotic Einstein is very special because the researchers at the University of California, San Diego (UCSD) have taught their realistic robot to smile, frown and make other complex facial expressions. Scientists believe that babies learn to control their bodies through movements, including learning to speak. "We use the same idea to work out the problem of how a robot could learn to make realistic facial expressions," said Javier Movellan, director of UCSD's machine Feeling Lab. ks5u The San Diego researchers directed the Einstein robot's head to turn in all directions. The robot could see its expressions in a mirror and then use the software to provide data for machine-learning to match facial expressions to the movements of its small motors. Once the robot learned the relationship between facial expressions and the muscle movements, it learned to make facial expressions. Its head has about 30 facial feelings, and each is moved by a tiny motor connected to ht e skin by s sting. Although we've never met Albert Einstein, we have a feeling that the new robot isn't exactly a fair representation of now of the best minds of the 20th century. The figure does not have the grace of the great man, but it can recognize human expressions and react to them in the right way. In fact, if you smile at it, it will smile right back to you. "As far as we know, no other research group has used a robot to make realistic facial expressions," said computer scientist Tingfan Wu, a computer science PhD student who worked on a more exact facial expression robot. Question: This robot is special mainly because it _ . Answer:

OPTIONS:
- looks just like Albert Einstein
- can make various complex facial expressions
- can walk and talk to people
- can turn its head in all directions

A: can make various complex facial expressions

Q: Read the following article and answer the question. Article: It took 100 years, but finally, scientists proved Albert Einstein's theory that gravitational waves exist. The waves were predicted as part of Einstein's general theory of relativity nearly 100 years ago. It was the theory of the physics behind the workings of our world and the universe. The idea was that the waves are like ripples in space, caused by some of the violent and energetic processes in the universe. For example, two black holes crashing into each other. Now a group of scientists, including ones from Caltech, MIT and the LIGO Scientific, Collaboration finally found the gravitational waves. David Reitze is the executive director of the LIGO observatory at Caltech. "We have detected gravitational waves. We did it!" What are these gravitational waves? Well, imagine throwing a rock into a pond. When the rock hits the flat surface of the water, it creates ripples or waves. Space-time is like the surface of the water. So that means gravitational waves are like the ripples moving out from where the rock hits the water. It might be hard to understand, but those gravitational waves expand and contract space and time as they move through space. And when they get to the Earth, the waves pass through, and they contract and expand the planet as the waves go by. It was Einstein who said these gravitational waves should be observable. But these are not huge waves. They are very, very small, which is why it took so long to find them. You cannot see them with your eyes. They are smaller than the size of an atom. How did the scientists find them? They used a giant scientific tool called LIGO, which stands for the Laser Interferometer Gravitational-Wave Observatory. The billion-dollar LIGO project is two L-shaped observatories. One is in Louisiana and the other in Washington state. For years, scientists have been watching two black holes in another faraway galaxy. The two were spinning around each other, moving closer and closer together. When they finally crashed into each other, it was with such power and force... Question: With the discovery of gravitational waves, we'll _ . Answer:

OPTIONS:
- create a new world
- make full use of gravitational waves
- view the universe in a new way
- avoid being hit by black holes

A: view the universe in a new way

Q: Read the following article and answer the question. Article: Mr. Black was the manager of a hotel in Atlanta. One weekend all of the hotels were full because of a large business meeting being held in the city. On Sunday night, three men came into Mr. Black's hotel and asked for rooms. Mr. Black told them that there were no more rooms available. The men didn't know what to do because they had no place to stay in. Mr. Black wanted to help them. He remembered that there was an empty room at the far end of the first floor -- Room 112. It was a very small room, and had rarely been used as a guest room before. So, he asked the three men if they would mind sharing that small room. They replied that they would be very satisfied so long as there was a room for them to stay in for the night. Mr. Black then told them that the room would cost them $ 30 in total. On hearing this, each of the three men gave Mr. Black $ 10 before they left for their room. However, Mr. Black soon began to think that $ 30 was really too much for that small room. He called his assistant over and said, "Here is $ 5. Give it back to the three men in Room 112. Each of them paid me $10. That's too much." The assistant took the money. While he was on the way to that small room, he thought, "How can three men divide $ 5? I'll give each of them only $ 1 and keep the $ 2 left to myself. The men will be happy to get anything back, and I can also make some money that way. After all, Mr. Black will never know anything about it." So, the assistant returned only $1 to each of the three men. Each man had first paid $ 10. After the assistant returned $1 to him, each man had actually paid only $ 9. There were three men. $ 9x3="$27." The assistant kept $ 2. $ 27 + $ 2=" $" 29. Where is the missing dollar? Question: How were the manager and his assistant in behavior? Answer:

OPTIONS:
- The manager was honest but the assistant was not.
- The manager worked hard, but the assistant was lazy.
- The assistant was clever but the manager was not.
- The manager did not know how to make money, but the assistant did.

A:
The manager was honest but the assistant was not.