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大学英语四级测验真题及参考答案
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C)Many got kill in the wild when searching for food.

D)They were hunted by Spanish and Russian explorers.

17.A)They often make sudden attacks on people.

B)They break up nature’s food supply chain.

C)They cause much environmental pollution.

D)They carry a great many diseases.

18.A)They lived peacefully with wild pigs.

B)They ran out of food completely.

C)They fell victim to eagles.

D)They reproduced quickly.

Questions 19 to 21 are based on the conversation you have just heard.

19.A)Taste coffee while in outer space.

B)Roast coffee beans in outer space.

C)Develop a new strain of coffee bean.

D)Use a pressurised tank to brew coffee.

20.A)They can easily get burned.

B)They float around in the oven.

C)They have to be heated to 360°C.

D)They receive evenly distributed heat.

21.A)They charged a high price for their space-roasted coffee beans.

B)They set up a branch in Dubai to manufacture coffee roasters.

C)They collaborated on building the first space coffee machine.

D)They abandoned the attempt to roast coffee beans in space.

Questions 22 to 25 are based on the conversation you have just heard.

22.A)It is the best time for sightseeing.

B)A race passes through it annually.

C)They come to clean the Iditarod Trail,

D)It is when the villagers choose a queen.

23.A)Its children’s baking skills.

B)Its unique winter scenery.

C)Its tasty fruit pies.

D)Its great food variety.

24.A)The contestants.

B)The entire village.

C)Jan Newton and her friends.

D)People from the state of Idaho.

25.A)She owned a restaurant in Idaho.

B)She married her husband in 1972.

C)She went to Alaska to compete in race.

D)She helped the village to become famous.

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