What the author mainly intends to say in the first paragraph is ______. It isn’t said in the passage that L-GG can be used to _

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问题 What the author mainly intends to say in the first paragraph is ______.
It isn’t said in the passage that L-GG can be used to ______.

选项 A、lessen symptoms of Crohn’s disease
B、fight against rotavirus
C、treat traveler’s diarrhea
D、treat intestinal upsets caused by antibiotics

答案A

解析 事实判断题。在第三段,作者提到L-GG,as it’s called,has been used to treat traveler’s diarrhea and intestinal upsets caused by antibiotics. Even more intriguing, L-GG also seems to work against some viruses,including rotavirus,one of the most common causes of diarrhea in children in the U.S. and around the world.其中,对其他三项的内容都有包括,但答案选项所说的作用不在此列,应作为本题答案。
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