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1.One of the most important tools for research in social science is well-written questionnaire
2. In all animals, whether simple and complex,enzymes aid in the digestion of food
3.Many sailboats are equipped with small engines for times when there is not wind enough
4.Dynamics is a branch of physics that deals for the relationship between motion and force
2. In all animals, whether simple and complex,enzymes aid in the digestion of food
3.Many sailboats are equipped with small engines for times when there is not wind enough
4.Dynamics is a branch of physics that deals for the relationship between motion and force