Which of the following parasites can parasitize in the intestinal tract of pigs? （）

Which of the following parasites can parasitize in the intestinal tract of pigs? （）

A.Ascaris suum

B.Clonorchis sinensis

C.Trichinella spiralis

D.Isospora suis

正确答案：Ascaris suum；Trichinella spiralis；Isospora suis