已知FOSC=6MHZ,试编写程序,利用T0工作在方式2,使P1.0和P1.1分别输出周期为1ms和400us的方波。
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当FOSC=6MHZ和FOSC=12MHZ时,最大定时值各为多少?
已知FOSC=12MHZ,试编写程序在P1.0输出脉冲,每秒产生一个脉宽1ms正脉冲,每分产生一个脉冲10ms正脉冲。
下列关于向量组的极大线性无关组的说法中,错误的是( ).
A. 一向量组的极大线性无关组与向量组本身等价
B. 一向量组的极大线性无关组一定是不唯一的
C. 一向量组的任意两个极大线性无关组等价
D. 一向量组的任意两个极大线性无关组含有相同个数的向量
According to the passage, what is a gap year?
A. It is the one-year-long break after high school.
B. It is the one-year-long break before or after high school.
C. It is the one-year-long break after university.
D. It is the one-year-long break before or after university.