A.幼蟲(chóng)-若蟲(chóng)-成蟲(chóng) B.幼蟲(chóng)-成蟲(chóng)-若蟲(chóng) C.若蟲(chóng)-若蟲(chóng)-成蟲(chóng) D.若蟲(chóng)-成蟲(chóng)-若蟲(chóng)
A.白蛉 B.蚊蟲(chóng) C.蒼蠅 D.禽類(lèi)
A.蛔蟲(chóng)受精卵 B.未受精蛔蟲(chóng)卵 C.感染期蛔蟲(chóng)卵 D.絲狀蚴 E.蛔蟲(chóng)受精卵、未受精卵