Why are people from all over the world getting started to learn Mandarin Chinese（）
A. Because of its influential and rising status worldwide, there are a great many other language speakers trying their best to learn Chinese and its culture better
B. China is a country rich in history, culture, science and arts where traditions go back thousands of years
C. People from all over the world hold their claim that they prefer Chinese only to any other languages
D. Both A and B
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According to the author, what are the risks stress brings to people（）
A. Diabetes
B. Depression
Cancer
D. Heart attacks
what does “buy into “mean（）
A. to accept one idea
B. to buy something
C. to refuse
D. to ask for
When did the author develop an understanding of the relationship between work and money（）
A. By the time he graduated from elementary school
B. When he was in high school
C. By the time he graduated from college
D. When he was sophomore in college
What lessons does the experience of college have to impart according to the author（）
A. Socialization and time management
B. Nutrition and finance
C. Mathmatics
D. Art
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