Once ______, the book will surely attract readers’ attention since it is related to people’s health. ( 章节：1 难度：2)
- A、publishing
- B、having published
- C、published
- D、to publish
正确答案:C
答案解析:有
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Once ______, the book will surely attract readers’ attention since it is related to people’s health. ( 章节：1 难度：2)
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