阴道毛滴虫的生活史简单，其感染阶段与致病阶段是（ A: A. Trophozoite B: B. cyst and trophozoite C: C. mature,cyst D: ; promastigote E: E • amast1gote

The infective stages of Toxoplasma gondii in intermediate host and final host include ( ) A: Oocyst B: Trophozoite C: Cyst D: Egg

疟原虫对人体的感染阶段可以是 A: schizont B: sporozoite C: merozoite D: trophozoite E: oocyst

阴道毛滴虫的生活史简单，其感染阶段与致病阶段是（） A: trophozoite B: cystandtrophozoite C: maturecyst D: promastigote E: amastigote