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I'm taking a test and have to guess the right answer to the question after the article. Article: This is a picture of Mr. Li's family. The man in the middle is Mr. Li. The woman is Mrs. Li's wife. They have two sons. The child behind Mr. Li is Li Lei. He's thirteen. The boy in front of Mrs. Li is Li Ming. He is seven. Li Lei and Li Ming are in the same school, but not in the same grade. Li Lei is in Grade Two. Li Ming is in Grade One. They are good students. Question: Mr. Li is Li Lei's _ . Options: A: uncle B: mother C: father D: son
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C

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I'm taking a test and have to guess the right answer to the question after the article. Article: A city without cars would be very strange , right ? But Venice is such a city . Venice is in the northeast of Italy. It wasn't built on land, like Beijing or Shanghai, but on more than 110 islands. Seawater is everywhere around the city. Even so, travel isn't that difficult. The waterways have always been the best way to get around. There are 117 waterways and more than 400 bridges that can guide you where you want to go. People in Venice move from place to place by boat. Water makes the city special, but it is also a big problem. Sometimes tourists will have such strange experiences . One moment they walk across the Rialto Bridge , and there's nothing special . But when they come back to the bridge an hour later , it's underwater and everyone is wearing rain shoes . Once, people used too much underground water. This made the city get lower little by little. Now the city has gone down by 23 centimeters. Another problem is the rising seawater. The temperature has risen over the years. This has made ice of the Arctic Ocean melt . Every year, high waters hit the city in autumn and winter. When a lot of water comes, more than half of the city is underwater. Scientists are trying different ways to stop the city from getting even lower. The Italian government has asked some of Italy's biggest companies to build the MOST project , which was planned to be built under the seawater to stop the rising water . Anyway , this project is helping solve the problem . Question: Venice has gone down by 23 centimeters because _ . Options: A: people used too much underground water B: it got higher little by little C: the temperature has fallen over the years D: more than half of the city is underwater
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A

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I'm taking a test and have to guess the right answer to the question after the article. Article: Farmer Ed Rawlings smiles as he looks at his orange trees. The young oranges are growing well in Florida's weather. Warm sunshine and gentle rains, along with Ed Rawlings' expert care, will produce a good crop of oranges this year. However, Ed has to guard against Florida's changeable winter weather. In January and February, temperatures can destroy Ed's entire orange crop. Having farmed in Florida for the past 35 years, Ed is prepared for the frost . When temperatures drop below freezing, Ed tries to save his crop by watering his orange trees. The water freezes and forms a thin layer of ice around the trees. Strange as it may sound, this thin layer of ice actually keeps the fruit warm. What happens is simple. When the trees are watered, the water loses heat and becomes ice. The warmth of the heat it loses is taken in by the fruit and keeps its temperature at a safe level. Ed has effectively used this method to save many orange crops. But Ed still faces difficulties. The trees must be watered at the exact moment the temperature drops to the freezing point. Also, just the right quantity of water must be used. Too much water can form a thicker layer of ice that will break the tree's branches . Another difficulty is that wind blows away the heat, so Ed has to worry about not only when but also how often his trees should be watered, and how much water should be used. Computer technology may help Ed with some of these worries. With equipment , air and soil temperatures and wind speed can be measured. The information is fed into a computer which can calculate when the temperature will drop below freezing. The computer can correctly decide the quantity of water to be used and how frequently( ) the trees should be watered. Ed finds looking after his orange trees a lot easier with the help of a computer, and, his customers will have the benefits of computer--age oranges. Question: According to the passage, the computer technology _ . Options: A: removes the need for frost protection B: prevents temperature from dropping C: tells farmers why outdoor temperatures change D: helps the farmer get a better harvest
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D