Is it better to do sets of exercises in a row or in a cycle?!

I am wondering because I have done it both ways and am wondering if one is healthier/more efficient than the other!.

For example is it better to do three sets of bicep curls, three sets of chest press, then three sets of tricep pushbacks!.!.!.!.!.
(or)
a set of bicep, then chest, then tricep, then repeat three times!.

Thanks in advance!.Www@Answer-Health@Com

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