Description: S0-S7 for Answer 8 keystrokes, LD0-LD7 instructions for 8-way output, Answer successful implementation of the LD and the corresponding light, usually to eliminate. Then in the S8 as INT0 appear, start button. When pressing the Answer key to be valid, otherwise regarded as a violation, effective Answer a long ring sound, ring violation Answer 2 short sound. LD after 1 second the speed of the flow by 30 seconds flashes per second嘀sound a short ring. Answer not more than 30 seconds invalid: four long acoustic sound. Answer effective after the corresponding LD-liang, LD to stop the flow. At this point, only two appear effective Kin: ok-key by pressing the right button to answer, 4 ring buzzer sound, press the cp-key to answer the wrong buzzer sound ring 3. At this point back to the initial state, waiting for a title and press the start cp-key Answer
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qdq.c
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