francisstallings02 francisstallings02

28-03-2017
Health

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Which is a disease of the respiratory system often caused by smoking?
A) Emphysema
B) Atherosclerosis
C) Idiopathic edema
D) Thalassemia

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Аноним Аноним

28-03-2017

The answer to this question is, A.
Emphysema is the way of breathing and smoke blocks or makes it worst.

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