Answer:
"But a subgroup of kids, about 10% or 20%, showed a dramatic onset of symptoms after their injury and persistent symptoms that in some cases remained even 12 months after the injury."
Explanation:
I read the Article and took the quiz. I really hope this help :D
Answer:
an acronym is when letters are used to stand for words.
for example, U.S.A., United States of America
another example, N.B.A., National Basketball Association
Explanation:
N.F.L. National football league
