As is well known, the brain performs a very important , which controls the nerve

As is well known, the brain performs a very important _______, which controls the nerve system of the body.

 A. motion     B. action      C. function      D. fact

试题答案

C

解析:

句意：众所周知，大脑起着重要的作用，它控制着人体的神经系统。A项移动，运动；B项行动，function功能，作用。