公司创业主要指被已有组织发起的组织的创造、更新与创新活动,创业活动是由在组织中工作的个体或团队推动的。
A. 对
B. 错
Digital circuits are electric circuits based on two discrete voltage levels labeled ‘Low’ ( 0 ) and ‘High’ ( 1 ) . Often ‘Low’ will be near zero volts and ‘High’ will be at a higher level depending on the supply voltage in use.
A. 离散电压值
B. 基于
C. 供电电压
D. 数字电路
Computers, electronic clocks, and programmable logic controllers are constructed of digital circuits.
A. 计算机
B. 电子钟
C. 编程逻辑控制器
D. 数字电路
There are six basic logic gates: AND, OR, NOT, NAND , NOR, and XOR.
A. 逻辑门
B. 异或门
C. 与非门
D. 或非门