A.蟯蟲(chóng)卵無(wú)色 B.蟯蟲(chóng)卵太小 C.雌蟲(chóng)產(chǎn)卵太少 D.蟯蟲(chóng)胎生幼蟲(chóng) E.雌蟲(chóng)在肛周產(chǎn)卵
A.蟯蟲(chóng) B.鉤蟲(chóng) C.蛔蟲(chóng) D.班氏絲蟲(chóng) E.鞭蟲(chóng)
A.兩個(gè)尾核 B.體核排列清楚 C.體態(tài)僵硬 D.頭間隙的長(zhǎng)度是寬度的2倍 E.體核密集不易區(qū)分