A.經(jīng)口B.胎盤(pán)C.母乳D.皮膚
A.豬蛔蟲(chóng)B.豬旋毛蟲(chóng)C.豬鞭蟲(chóng)D.豬結(jié)節(jié)蟲(chóng)
A.蟲(chóng)體表皮紅白相間B.蟲(chóng)體腸管充滿(mǎn)紅色血液與白色子宮相互纏繞C.蟲(chóng)體血管和子宮相互纏繞D.蟲(chóng)體血管和腸道相互纏繞