Achieve four answer. The circuit have a first answer signal to identify and latch function, after the moderator began to answer the reset button is pressed, and EDA training with eight digital tube display on the meter s serial number answer, while speaker beep sound, and maintained for 3 seconds, and the circuit self-locking, no longer accept the other players answer signal. A scoring circuit, each set of 100 points at the start, scoring after the answer by the moderator, the correct answer to a 10 points, got it wrong once by 10 points. Design a foul circuit for advance Responder and Responder were honking warning timeout and display group numbers foul.

四路抢答器
..........\QDQ.asm.rpt
..........\QDQ.bdf
..........\QDQ.done
..........\QDQ.epe.rpt
..........\QDQ.epe.summary
..........\QDQ.fit.rpt
..........\QDQ.fit.smsg
..........\QDQ.fit.summary
..........\QDQ.flow.rpt
..........\QDQ.map.rpt
..........\QDQ.map.summary
..........\QDQ.pin
..........\QDQ.qpf
..........\QDQ.qsf
..........\QDQ.qws
..........\QDQ.sim.rpt
..........\QDQ.tan.rpt
..........\QDQ.tan.summary
..........\QDQ.vwf
..........\QDQ_early_pwr.csv
..........\db
..........\..\QDQ.asm.qmsg
..........\..\QDQ.cbx.xml
..........\..\QDQ.cmp.bpm
..........\..\QDQ.cmp.cdb
..........\..\QDQ.cmp.ecobp
..........\..\QDQ.cmp.hdb
..........\..\QDQ.cmp.logdb
..........\..\QDQ.cmp.rdb
..........\..\QDQ.cmp.tdb
..........\..\QDQ.cmp0.ddb
..........\..\QDQ.cmp2.ddb
..........\..\QDQ.db_info
..........\..\QDQ.eco.cdb
..........\..\QDQ.eds_overflow
..........\..\QDQ.epe.qmsg
..........\..\QDQ.fit.qmsg
..........\..\QDQ.fnsim.cdb
..........\..\QDQ.fnsim.hdb
..........\..\QDQ.fnsim.qmsg
..........\..\QDQ.hier_info
..........\..\QDQ.hif
..........\..\QDQ.map.bpm
..........\..\QDQ.map.cdb
..........\..\QDQ.map.ecobp
..........\..\QDQ.map.hdb
..........\..\QDQ.map.logdb
..........\..\QDQ.map.qmsg
..........\..\QDQ.map_bb.cdb
..........\..\QDQ.map_bb.hdb
..........\..\QDQ.map_bb.hdbx
..........\..\QDQ.map_bb.logdb
..........\..\QDQ.pre_map.cdb
..........\..\QDQ.pre_map.hdb
..........\..\QDQ.psp
..........\..\QDQ.root_partition.cmp.atm
..........\..\QDQ.root_partition.cmp.dfp
..........\..\QDQ.root_partition.cmp.hdbx
..........\..\QDQ.root_partition.cmp.logdb
..........\..\QDQ.root_partition.cmp.rcf
..........\..\QDQ.root_partition.map.atm
..........\..\QDQ.root_partition.map.hdbx
..........\..\QDQ.root_partition.map.info
..........\..\QDQ.rtlv.hdb
..........\..\QDQ.rtlv_sg.cdb
..........\..\QDQ.rtlv_sg_swap.cdb
..........\..\QDQ.sgdiff.cdb
..........\..\QDQ.sgdiff.hdb
..........\..\QDQ.signalprobe.cdb
..........\..\QDQ.sim.cvwf
..........\..\QDQ.sim.hdb
..........\..\QDQ.sim.qmsg
..........\..\QDQ.sim.rdb
..........\..\QDQ.simfam
..........\..\QDQ.sld_design_entry.sci
..........\..\QDQ.sld_design_entry_dsc.sci
..........\..\QDQ.smp_dump.txt
..........\..\QDQ.syn_hier_info
..........\..\QDQ.tan.qmsg
..........\..\QDQ.tis_db_list.ddb
..........\..\QDQ.tmw_info
..........\..\prev_cmp_QDQ.asm.qmsg
..........\..\prev_cmp_QDQ.epe.qmsg
..........\..\prev_cmp_QDQ.fit.qmsg
..........\..\prev_cmp_QDQ.map.qmsg
..........\..\prev_cmp_QDQ.qmsg
..........\..\prev_cmp_QDQ.sim.qmsg
..........\..\prev_cmp_QDQ.tan.qmsg
..........\..\wed.wsf
..........\djs.v
..........\jif1.v
..........\qdq3.v

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