A senior woman always repeats statements and questions over and over£¬ not realizing that she has asked the question before.She tends to forget conversations£¬ appointments or events.This woman may be diagnosed with£¨£©.
A.Down' s syndrome
B.Crohn' s disease
C.Parkinson' s disease
D.Alzheimer' s disease
ÕýÈ·´ð°¸£ºAlzheimer' s disease