问题
单项选择题
（）的萃取过程是在极低温度下进行，不会破坏精油本身的分子结构，所萃取的精油几乎毫无瑕疵，且精油本身也不含任何残余物。
A.二氧化碳萃取法
B.化学溶剂萃取法
C.水蒸汽蒸馏法
D.冷冻压缩萃取法
答案
参考答案：A
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（）的萃取过程是在极低温度下进行，不会破坏精油本身的分子结构，所萃取的精油几乎毫无瑕疵，且精油本身也不含任何残余物。
A.二氧化碳萃取法
B.化学溶剂萃取法
C.水蒸汽蒸馏法
D.冷冻压缩萃取法
参考答案：A
三. 任务型阅读 请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入最恰当的单词。 注意：每空一词 Advantages and disadvantages of private cars With the fantastic spur (刺激) both in industry and in economy in China, the number of people who own private cars is on the rise. Some people have bought cars of their own, and others are planning to buy cars. But there have been two quite different views on this phenomenon. Some claim that there are many advantages brought about by cars. First, the automobile industry provides jobs for countless workers and strong support for other industries. Second, if conditions permit, owning a car can make us work more efficiently. Finally, life will become more convenient. A car allows one to move freely and with a car there is no need to wait for the bus in the cold or under the burning sun. However, others strongly object to the increase in developing private cars. They hold that automobiles will give rise to a series of problems. In the first place, as more and more cars are produced and run in the street, a large volume of poisonous gas will be given off, polluting the atmosphere and causing actual harm to the health of people. Next, private cars contribute to traffic congestion (拥塞) so greatly that the advantages gained in comfort and freedom are often cancelled out by the frustration （挫折）caused by traffic jams. The last problem is the increasing number of car accidents that have killed and will kill a lot of people in a friction of a second. In my opinion, although automobiles have been playing a vital part in the daily activities of our society, they also bring us numerous troubles such as more serious environmental pollution, more traffic accidents and more energy consumption. They drink up huge amounts of fuel and throw out huge amounts of pollutants. Traffic accidents kill thousands and thousands of people each year and cripple more. Jams waste our precious time. Therefore I am against developing private cars.
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