7. What is the most important clinical manifestation of Down syndrome? A. Head circumstanced decreasedB. Mental retardationC. Short statureD. Abnormal skin texture
A、
A、 Head circumstanced decreased;
B、
B、 Mental retardation;
C、
C、 Short stature;
D、
D、 Abnormal skin texture
发布时间：2025-06-30 15:06:02
