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#include<reg52.h>sbitK1=P3^1;sbitK2=P3^0;voiddealy(intk){inti,j;for(i=k;i>0;i--)for(j=110;j>0;j--);}voidmain(){inta=0xff;if(K1==0){dealy(500);if(K1==0){while(!(K2==0)){P2=a;a=a>>1;de...