单项选择题
What happens to nitrogen in body tissues if a diver ascends too quickly
A.It forms bubbles.
B.It goes directly to the brain.
C.It is reabsorbed by the lungs.
D.It has a narcotic effect.
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单项选择题
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.
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单项选择题
The best title for this passage would be ______.
A.The Importance of Being Visible
B.Role of Women and Minorities in Management
C.Job Performance and Advancement
D.Sex and Career Success
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