The special medicine for the disease was difficult to find though ________

everywhere.

A．sought

B．having sought

C．being sought

D．having been sought

以下哪项不属于言语功能训练（）

A.词汇理解、表达训练

B.句法能力训练

C.书面笔谈训练

D.读字训练

E.失用训练