—________ a post office in your neighborhood?

—Yes, there is. [ ]

A. Has

B. have

C. There isn't

D. Is there

个体学习和记忆的类型有很多种，下面选项中属于非联合型学习的表现有：（）

A.习惯化

B.敏感话

C.假性条件化

D.经典型条件反射

E.操作性条件反射