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  3. What does the passage mainly discuss? What happens to nitrogen in body tissues if a diver ascends too quickly?

What does the passage mainly discuss? What happens to nitrogen in body tissues if a diver ascends too quickly?

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问题 What does the passage mainly discuss?
What happens to nitrogen in body tissues if a diver ascends too quickly?
选项 A、It forms bubbles.
B、It goes directly to the brain.
C、It is reabsorbed by the lungs.
D、It has a narcotic effect.
答案A
解析 细节题。第三段提到"If the return to the surface is too rapid，nitrogen in the tissues and blood cannot diffuse out rap idly enough and nitrogen bubbles are formed."，显然，答案选项复合文章意思，应为正确答案。
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考研英语一

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