What the author mainly intends to say in the first paragraph is . This passage is mainly about .

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问题 What the author mainly intends to say in the first paragraph is ______.
This passage is mainly about ______.

选项 A、the definition of bacteria
B、health germs
C、probiotics
D、probiotics versus antibiotics

答案B

解析文章主旨题。文章第一段的内容就已表明作者的话题是有益菌。后文结合具体的临床运用更直观地层示了有益菌的功劳。也就是说，本文的所有内容，显然是围绕health germs来展开的。

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考研英语一

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