A.美麗筒線蟲(chóng) B.結(jié)膜吸吮線蟲(chóng) C.旋毛形線蟲(chóng) D.廣州管圓線蟲(chóng) E.絲蟲(chóng)
A.霸權(quán)B.保護(hù)C.單邊D.排外
A.相輔相成B.激烈競(jìng)爭(zhēng)C.各自為謀D.相互羈絆