The division criterions of parasites do not include （）
A.Host ranges and species
B.Degree of adaptation to hosts
C.Host sizes
D.Time or period in or on hosts
正确答案：Host sizes
The division criterions of parasites do not include （）
A.Host ranges and species
B.Degree of adaptation to hosts
C.Host sizes
D.Time or period in or on hosts
正确答案：Host sizes