CPU与主板之间的同步运行速度称之为()。
A、倍频
B、总线频率
C、外频
D、同步率
参考答案:C
— Why were you late for the meeting yesterday?
— Well, my car ________ on the way to the company. [ ]
A. broke out
B. broke down
C. broke up
D. broke through
引起细菌性痢疾传播途径的是()
A.呼吸道传播
B.昆虫媒介
C.食入污染的食物
D.苍蝇污染食物
E.饮用污染的水