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The period of Stone Age is during 2000--250BC.()
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基于initial语句产生普通时钟信号, parameter clk_period = 10; reg clk; initial begin clk = 0; ________________; endA.always #(clk_period/2) clk = ~clkB.forever #(clk_period/2) clk = ~clkC.always #(clk_period) clk = ~clkD.forever #(clk_period) clk = ~clk
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