A.帶絳蟲(chóng)卵 B.鉤蟲(chóng)幼蟲(chóng) C.陰道毛滴蟲(chóng) D.班氏微絲蚴 E.埃及血吸蟲(chóng)卵
A.宿主生理狀態(tài) B.局部環(huán)境 C.蟲(chóng)株毒力 D.隱性感染 E.與其他病原體協(xié)同作用
A.經(jīng)胎盤(pán) B.經(jīng)直接接觸 C.經(jīng)皮膚 D.經(jīng)間接接觸 E.經(jīng)昆蟲(chóng)媒介