1,1,2,3,5,8,（ ）,21,（ ）,55.

1,1,2,3,5,8,（ ）,21,（ ）,55.

1+1=2 1+2=3；；；；；；；；5+8=（13） 13+21=（34）

What is the most basic relationship between cognitive subject and cognitive object?
A. the practical relationship between transformation and being transformed
B the cognitive relationship between reflection and reflected
The interdependence of C
The relationship of D interaction

B. The subject of cognition is human, and the object is the object to be understood. The process of cognition is that the object (object) is reflected to the subject (human)