题目内容
为委托人保守商业秘密是房地产经纪人的义务。()
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1砖墙的厚度尺寸为490mm。()
【C3】
听力原文：W：Hi，Mike! You missed a great history lecture this morning．Where were you？
M: Oh, I overslept again. This really is becoming a bad habit. What did Professor Brown talk about today？
W: Can you believe it？ We talked about George Washington's false teeth.
M: All I know is that they were made of wood.
W: A professor at a dental school in California recently presented a paper showing that Washington's teeth were made of many things, including, can you imagine, elephant ivory and cow's teeth, but not wood.
M: But why do people say Washington's teeth were made of wood？
W: A set of his teeth that were made of elephant ivory were shown publicly at various exhibitions about a hundred years ago. The ivory had turned a very dark color, and I guess, looks like wood.
M: Yes, I've seen some ivory that was dark brown color.
W: It seems that ivory turns dark easily with age, especially if it's exposed to drinks, such as coffee, tea, or wine. I guess that's how the story got started.
M: What's about cow's teeth？
W: You know cows have teeth just on their bottom jaws. After about five years of biting grass off against their hard up- per jaws, the bottom teeth wear down into the shape of a human tooth.
(23)
Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文： Kenya was a beautiful country inhabited by different groups of people, some farmers, some herdsmen, a few hunters, when the English arrived. The main motivations for colonizing Kenya were economic--to take away resources; and strategic— to take control before the Germans or some other European "power" did. However, the English were a mixed group of people like everyone else. Many English people were concerned about tile welfare of Kenyans and worked under colonialism. These were civil servants，missionaries and some farmers，business and professional people who worked hard to develop Kenya both before and after independence．
Before Kenya was such a pleasant，easy place to live，another group of people came to live in Kenya，known generally as the settlers．The first settlers tended to be the social outcasts from wealthy families in England，though later they were joined by a wider group of English population．In particular，English soldiers who fought in the First World War were given farms in Kenya．This is a fantastic idea—to give away land which does not belong to you in the first place．The people who actually owned the land tended either to be pushed off or to become servants and agricultural laborers for the people who arrived from England．
(27)
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