引导学生分辨勇敢和鲁莽、谦让和退缩是属于刺激().
A.获得
B.消退
C.分化
D.泛化
参考答案:C
解析:刺激分化指使有机体学会对条件刺激和与条件刺激相类似的刺激做出不同的反应.
Linda _______ the Space Museum after school yesterday.[ ]
A. has been to
B. was gone to
C. went to
D. has gone to
适合染中浅色的是还原染料。