We continue our series on learning disabilities with a problem that is not considered a learning disability by itself, but it can af fect learning.Our subject is attention deficit disorder, A.D.

• 我们继续有关学习功能障碍的系列报道；这个问题不被认为是自身的学习障碍；但是却对学习有影响.；我们的主题是注意缺陷障碍；A