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阅读下列短文，从每题所给的四个选项中选出最佳选项。
Regular exercise is essential to good health. Doctors say that people who exercise for at least thirty minutes a day are much less li…
Regular exercise is essential to good health. Doctors say that people who exercise for at least thirty minutes a day are much less li…
A. As long as they like.
B. At least thirty minutes.
C. At least two hours.
D. At least ten minutes.
选择性必修第二册 · 阅读理解 · 阅读理解·细节理解题
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