Which of the following statements about Clonorchis sinensis is TRUE?
A、It is sometimes referred to by the common name "oriental liver fluke".
B、A pair of large,lobulated testes with seven branches is in the posterior 1/3 of the animal.
C、The adult worm resides in the bile ducts of the definitive host and isrelatively small,10 to 25 mm long by 3 to 5 mm wide.
D、A characteristic knob is at the abopercular end of the egg shell.
E、The definitive hosts include humans,dogs,cats,pigs,and rodents.