Choose from the following, which was not the discussions proposed for the Radio Act of 1927
A. The principle of open access to all was rejected
B. Like the press and movie, radio would not be a regulated medium
C. Public interest is a core standard to distinguish quality radio from poor radio
D. Radio would become a commercial medium in private hands
查看答案
下列逻辑式中,不正确的逻辑公式是( )。
A+BC=(A+B)(A+C)
B. A+AB=A+B
C. A+1=1
可以实现输出端直接连接的门电路是( )。
A. 异或门
B. 同或门
C. OC门
D. 三态门
D触发器具有的功能有( )。
A. 置0和置1
B. 置0、置1和保持
C. 置0、置1、保持和翻转
下列逻辑电路中为时序逻辑电路的是( )。
A. 译码器
B. 加法器
C. 计数器
D. 数据选择器