以下关于计算机网络的基本特征的叙述中，哪一项是不正确的

A．在计算机网络中采用了分组交换技术

B．建立计算机网络的主要目的是实现计算机资源的共享

C．互联的计算机是分布在不同地理位置的多台独立的“自治计算机”

D．联网计算机之间的通信必须遵循共同的网络协议

Passage Three

Which is NOT true according to the passage

A．Growth in height of a body is an example of maturation.

B．Maturation is the development of organization as a function of time or age.

C．Maturation is a process of accumulation of personal experience.

D．Learning plays a vital role in changes of a child’s behavior.