位于额中回后部的语言中枢是()。
A.书写中枢
B.内脏运动中枢
C.运动性语言中枢
D.听觉性语言中枢
E.视觉性语言中枢
参考答案:A
____ enters the computer rooms should take off his shoes in order to keep them clean enough.
A.Who
B.Whoever
C.What
D.Whatever
计算机网络从逻辑或功能上可分为两部分,它们是 ______、 ______。