Of all the animals in the animal kingdom, which one (aside from man) is the cleverest? There are several ways of measuring the intelligence of animals. In one test a scientist sets three same cans on a table. While the animal watches, he puts food under one of the cans. Then he leads the animal away. Some time later, he brings it back to see if it remembers which can has the food. No smelling is allowed; the animal must go directly to the correct can or it fails. This is called a delayed-response test. The idea is to find out how long an animal's memory can keep information. The scientists would try showing the cans to the animal one hour later, or two hours later, or even a full day later. They discovered that chimpanzees and elephants have the best memory, and were able to remember the correct can for at least twenty hours. No other animal is close. Dogs came next, but they only remember for nine hours. To settle the matter, the scientists designed a huge maze and ran the chimps and elephants through it. The maze was very difficult, with many blind paths and dead ends. It took the chimps ten minutes to find their way out. The elephants needed half an hour. Even allowing for the elephants' slower rate of speed, the test shows that chimpanzees are the cleverest animals. From this and other tests, the scientists drew the following conclusion: an animal's intelligence depends on the size of its brain in proportion to the size of its body. The elephant's brain weighs ten pounds. But this is only 1/600th of its 6,000 pounds body. A chimp's brain weighs about one pound, or 1/120th of its total body weight. So in proportion to its body size, the chimp has four times as much brain as the elephant----more brain for less body. The chimp is the champ! According to the passage, a rhinoceros that weighs 2100 pounds, and has a 3-pound brain is _ . A) as clever as a chimp B) more clever than an elephant C) less clever than an elephant D) as clever as an elephant
C
(Question)
Very far away from the city lived a poor farmer and his wife. In front of their house was a small dirt road. Very few cars drove on this road because it was so far from the city. On the dirt road, there was a big hole filled with water. The hole was very deep, but drivers on the road didn't know just how deep. Drivers always drove into the hole, but they never drove out. One day, a man in a new car was driving down the road. He saw the hole with the water, but he didn't think it was very deep. He drove into the hole, but he couldn't drive out. The man saw the farmer on his tractor working in the field, and he signaled to the farmer. The farmer drove over to the man in the new car. "Is there a problem?"asked the farmer. "Yes,"said the man."My car is stuck in this hole. Can you help me?" "Maybe,"said the farmer."But I'm very busy." "lf you help me, I'll pay you," said the man. "OK,"said the farmer. The farmer pulled the car out of the hole with his tractor, and the man paid him a lot of money. The man looked at the farmer and said,"You must. make a lot of money pulling cars out of this hole day and night." "Actually, no,"said the farmer. "Why not?"asked the man. "The hole is very deep, and a lot of people get stuck and ask for help. But I don't make money day and night because I don't pull cars out at night." "At night I'm busy filling the hole with water," answered the farmer. The reason why few cars drove on the small dirt road was that _ . A) there was a big and deep hole B) the couple was not polite enough C) it had a long distance from the city D) drivers were afraid of being in the hole
(Answer)
C
Ques: The Golden Gate Bridge in San Francisco, California is one of the world's most beautiful bridges. It is also one of the most visited places in the world. Vehicles cross the bridge an average of 41 million times each year. More than 1,800 hundred million vehicles have used the bridge since it opened more than 70 years ago. The bridge was painted "International Orange" because that color went well with the natural surroundings. The color also is easier to see in the heavy fog that often covers the area. But the Golden Gate Bridge was not named for its orange color. It was named for the body of water that it crosses, the Golden Gate Strait. The Golden Gate Strait is the entrance to the San Francisco Bay from the Pacific Ocean. The Golden Gate Bridge links the city of San Francisco with Marin County,California. Planning for the bridge began in the 1920s when the area around San Francisco was growing. People living in the area needed another way to get to the city besides small ferries . Joseph Strauss was the chief engineer for the project. Work began in 1934. Mr.Strauss demanded the strongest safety protections in the history of bridge building. These included the first use of "hard hats" to protect the workers' heads and special glasses to protect their eyes. A special safety net was suspended under the bridge. This net saved the lives of 19 men during the construction. However, 11 other workers were killed when they fell from the bridge through the net. Still, this was a new safety record for the time. The Golden Gate Bridge opened in 1937. It extends 1,280 meters across the water. The total length is 2,737 meters. It was the largest suspension bridge in the world until 1964. That is when the Verrazano Narrows Bridge opened in New York City. Today, the Golden Gate Bridge is the ninth longest suspension bridge in the world. What do we know about Joseph Strauss? A) He attached importance to the workers' safety. B) His safety measures were not of practical value. C) He built the first suspension bridge in the world. D) He demanded strong measures to ensure the safety of the bridge.
Ans: A
Question: Strawberry fields dotted with hunched-over workers picking and packaging, then pushing the delicate red fruit to waiting trucks -- it is a typical winter scene embedded in the patchwork of homes and farms that make up eastern Hillsborough County. That scene is changing, though, as the labor pool shrinks and technology comes knocking. Wish Farms owner Gary Wishnatzki and his engineer partner Bob Pitzer are banking on technology. As strawberry season wrapped up in February, their driverless strawberry-picking machine drove into the fields for some test runs. The results were impressive and enlightening , Wishnatzki said. For some three years now, farmers have been forced to abandon millions of dollars worth of strawberries in fields, mostly in Hillsborough and Manatee counties, because they lacked laborers, industry experts say. The problem has been just as serious in California, Arizona and other farm communities. The reasons for the shrinking worker pool are numerous. Migrant workers who have picked the fields for years are aging. Young adults in migrant families already in the United States are getting better educations and have more choices these days, including the construction industry, which again is on the upswing. Stricter security is allowing fewer undocumented workers to cross the border from Mexico. And Mexicans are having much smaller families now -- just over two children per family, compared with 7.3 per family in 1960, according to a Pew Hispanic Center report released in 2012. And since Mexico's economy bounced back faster than that of the U.S., more Mexicans have been able to find work closer to home, according to the study. "We came up with a concept we perceive as a necessity," Wishnatzki said. "The labor pool has been shrinking for over 10 years now. It has been pretty harmful." So in 2012, he and Pitzer formed their partnership, Harvest CROO Robotics, to develop a mechanical picker. The Harvest CROO design has multiple picking heads that will move across a field, picking 25 acres over a... The "vision system" is designed to _ . A) take pictures B) locate leaves C) find the ripe berries D) help the color-blind
Answer:
C