用触发器或者锁存器构建移位寄存器
时间：10-02
整理：3721RD
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For the following latches or flip-flops,( )can be used to form shift register
a)s-r latch b)master-slave flip-flop
c)s-r latch with enable d)s’-r’ latch
a)s-r latch b)master-slave flip-flop
c)s-r latch with enable d)s’-r’ latch