计时答题
........\Timer.cfg
........\Timer.dof
........\Timer.dpr
........\Timer.exe
........\Timer.res
........\Timer.~dpr
........\Unit1.dcu
........\Unit1.ddp
........\Unit1.dfm
........\Unit1.pas
........\Unit1.~ddp
........\Unit1.~dfm
........\Unit1.~pas
........\Unit2.dcu
........\Unit2.ddp
........\Unit2.dfm
........\Unit2.pas
........\Unit2.~ddp
........\Unit2.~dfm
........\Unit2.~pas
........\question.xls