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结构化分析方法SA、结构化设计方法SD、Jackson方法都是软件开发过程中应用的方法。人们使用SA方法可以得到1，该方法的基本手段是2；使用SD方法可以的到3，并可以实现4；而使用Jackson方法可以实现5。各自选项如下：

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News report 2-1Questions 1and 2 will be based on the following news item.[音频]

A. There are more coffee drinkers around the world.
B. Drinking coffee helps people live longer.
C. People have different coffee drinking habits.
D. Coffee can protect against all diseases.

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News report 2-2Questions 1and 2 will be based on the following news item.

A. Brain diseases, heart diseases and obesity.
Brain diseases, type 2 diabetes and obesity.
C. Heart diseases, brain diseases and depression.
D. Heart diseases. brain diseases and type 2 diabetes.

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News report 2-3Questions 3 and 4 will be based on the following news item.

A hurricane came along.
B. An earthquake suddenly happened.
C. A fire broke out in a hotel.
D. A snowstorm attacked the city.

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News report 2-4Questions 3 and 4 will be based on the following news item.

A. It's the world's tallest building.
B. It has 62 stores.
C. The flames of the hotel moves quickly.
D. It is burned to the ground.

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