【单选题】A 7-year-old girl has 1 1-month history of...
【单选题】A 7-year-old girl has 1 1-month history of foul-smelling diarrhea. Upon further inquiry, the frequency seems to be 4-6 stools per day. She has also had trouble seeing at night in the past2 weeks. Her WBC count is normal. Physical examination is entirely normal. Examination of a stool sample reveals that it is bulky and greasy. Analysis does not reveal any pathogenic microorganisms or parasites but confirms the presence of fats. Further evaluation of this patient would likely reveal which of the following conditions?
A、Lactose intolerance
B、Biliary insufficiency
C、Ileal disease
D、Diabetes
E、Giardiasis