单项选择题
A.at birth B.both at birth and through education C.through education D.neither at birth nor through education
A.most computer criminals who are caught blame their bad luck B.the rapid increase of computer crimes is a troublesome problem C.most computer criminals are smart enough to cover up their crimes D.many more computer crimes go undetected that arc discovered
A.moves in a quick but steady way year after year B.sends out less and less heat and light with each passing year C.radiates the same amount of light every year D.might have a strong influence on the weather patterns