题目内容

Computers are constructed of digital building blocks such as logic gates, flip-flops and counters.

A. 对
B. 错

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The output of XOR is 1 if one input is 1 and the other is 1.

A. 对
B. 错

The NAND, NOR and XOR are sequential logic, while the D flip-flop and JK flip-flop are combinational logic.

A. 对
B. 错

A binary 4-bit synchronous is implemented using 4 JK flip-flop and 2 AND gates.

A. 对
B. 错

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