A) Support

B) restriction

C) results

D) concentration

e) accidents

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a) compound noun : public support / public = adjetivo
Entao o nucleo : support

b) restriction porque se pode dizer também : Restriction types on cellphones

c) The results of the New Survey : New Survey's Results
o nucleo : survey

d) nucleo : concentration as palavras "blood" e "alcohol" completam o nome

e) accidents

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