Why did Michael Phelps start swimming?
A. To become a famous swimmer
B. To help him manage his excess energy
C. To make his parents proud
D. To work his way toward the Olympics
Which of the following can be inferred about Michael Phelps from the article?
A. He wasn't a talented swimmer as a child,but he worked hard to improve.
B. He has never be enable to pick himself backup after major setbacks.
C. He is not satisfied with average performance and instead strives to be outstanding.
D. He is someone who gets discouraged easily and would rather take the easy way out.
What does the author want to convey through the passage?
A. To encourage people to have persistent and never-say-die spirit
B. To tell people that innate ability is the shortcut to success
C. To tell people that genius doesn't need to work hard
D. To tell people that great people also have failures
贵州除了汉族以外，共有苗、布依、侗、土家等（）个世居少数民族。
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