dolwinfitzz28 dolwinfitzz28

23-01-2018
Health

contestada

“A specific reaction of the immune system to a foreign and frequently harmless substance” is an

A. inhaler.

B. arthritis.

C. allergy.

D. asthma.

Respuesta :

bfrane20 bfrane20

23-01-2018

it should be c. allergy

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