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It can be inferred from the passage that which of the following presents the greatest

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It can be inferred from the passage that which of the following presents the greatest danger to diver?

A) Pressurized helium.

B) Nitrogen diffusion.

C) Nitrogen bubbles.

D) An air embolism.

参考答案:

DD[试题分析] 细节了解题。[详细解答] 根据文章内容，A，B，C三项都不致于造成像 D air embolism导致肺破裂这么严重的后果，因此，应选D为正确答案。

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