A lot of fruits help us to keep in good health?(对划线的部分提问) help us to keep in good health

A lot of fruits help us to keep in good health?(对划线的部分提问) help us to keep in good health

题目
A lot of fruits help us to keep in good health?(对划线的部分提问) help us to keep in good health
划线的部分是A lot of fruits
答案
What does help us to keep in good health?
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