The parasites that inhabit in our intestinal cavity are：

A、Hookworm, Enterobius vermicularis, Fasciolopsis buski, Taenia saginata;
B、Filariasis buski, Plasmodium spp, Toxoplasma gondii, Leishmania donovani;
C、Plasmodium spp, Schistosoma japonicum, Trichomonas vaginalis, Tania solium;
D、Trichinella spiralis, Paragonimus westermani, Ascaris lumbricoides, Trichuris trichiura