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Yes, I Hope You Can Answer A Question I Have

Yes, I hope you can answer a question I have spent several hours researching today. This is the last question I need to answer for my class tomorrow. Medical Terminology.
Question: What is the oily substance that allows lungs to expand easily?
Thank you,
Sherrie
I didn't realize there was a fee to answer a question.

posted on Fri, 28 Oct 2016

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