Parasitology(寄生虫学), the study of parasites(寄生虫) and their relationships to the hosts(TE E), is one of the most fascinating areas of the biology. While it is entirely proper to classify many bacteria(细菌) and fungi(真菌) and all viruses as parasites
Www.Gtman.Net Healthy Problems Design By Din-Dang pyright 2003-2004 gtman. net All right reserved Spending a lot of time alone Exhibiting low self-esteem Frequent outbursts of shouting Complaining or crying Difficulty paying attention or concentrating on tasks such as homework