1.

P : Finish specialists recommended a chewing gum containing xylitol-a natural sweetener present in birch, maple, corn and straw-to be used several times a day by young children.
Q : Chewing gum is a new solution that may work for parents whose children suffer from chronic ear infections.
R : An experiment was conducted involving three hundred and six children between two and six years.
S : After Finish studies showed that xylitol is effective in preventing cavities, a team of researchers decided to investigate its effects on a very similar type of bacteria which causes ear infections.

A. Q R S P
B. P Q R S
C. R Q P S
D. Q P S R
Answer» E.


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