8088/8086一切复位信号至少维持( )个时钟周期的高电平有效。
A.1
B.2
C.3
D.4
参考答案:D
—_________
—Good afternoon, Cindy.[ ]
A. Good afternoon, Cindy.
B. Good afternoon, Eric.
C. How are you?
你是怎么理解教师“教”与学生“学”的关系?