题目内容：

1. What is the best title of the passage?(no more than 15 words)

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2. Can you use another English word to explain the underlined word “cultivating”?(no more than 3 words)

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3.According to the passage, what are the four kinds of sports causing athletic concussions?

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4.Why is the number, gathered by researchers at Nationwide Children's Hospital in Columbus, Ohio, not accurate(精确的)?(no more than 20 words)

5.Do you like playing basketball? How can you protect yourself in the game?(no more than 30 words)

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6. How many children play basketball each academic year?(no more than 1 word)