A.10s B.20s C.30s D.40s E.50s
A.再訓(xùn)練 B.替代 C.補償 D.再訓(xùn)練+替代 E.再訓(xùn)練+替代+補償
A.視覺 B.聽覺 C.觸覺 D.視覺和觸覺 E.視覺、聽覺和觸覺