A.蟯蟲(chóng)和絲蟲(chóng) B.鞭蟲(chóng)和旋毛蟲(chóng) C.鉤蟲(chóng)和蛔蟲(chóng) D.美麗筒線蟲(chóng)和糞類圓線蟲(chóng) E.鞭蟲(chóng)與蟯蟲(chóng)
A.糖 B.脂類 C.蛋白質(zhì) D.糖和脂類 E.蛋白質(zhì)和糖
A.鉤齒1對(duì) B.鉤齒2對(duì) C.板齒1對(duì) D.板齒2對(duì) E.鉤齒3對(duì)