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  3. What does the passage mainly discuss? It can be inferred from the passage that which of the following presents the greatest dan

What does the passage mainly discuss? It can be inferred from the passage that which of the following presents the greatest dan

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问题 What does the passage mainly discuss?
It can be inferred from the passage that which of the following presents the greatest danger to diver?
选项 A、Pressurized helium.
B、Nitrogen diffusion.
C、Nitrogen bubbles.
D、An air embolism.
答案D
解析 细节了解题。根据文章内容，其他三项都不至于造成象air embolism导致肺破裂这么严重的后果。
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考研英语一

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