题目内容
下面程序的运行结果是（）x=y=0;while(x<15)y++,x+=++y;printf("%d,%d",y,x);
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下面程序段的运行结果是（）int n=0;while(n++<=2)printf("%d",n);
设有程序段t=0;while(printf("*")){t++;if(t<3)break;}以下描述正确的是（）
以下程序段：x=-1;do{x=x*x;}while(!x);
Before modern humans, or Homo sapiens, migrated out of Africa perhaps 60,000 years ago, scientists tell us that another group, Neanderthals, had occupied Europe and Asia for 1200,000 years. Although there were probably no more than 15,000 of them at their population's peak, groups of Neanderthals were 2 over a(n) 3 area throughout Europe, into the Middle East, and even as far east as Mongolia.In 1856, the first Neanderthal bones were found in Germany's Neander Valley by workers digging for stones. These thick bones indicated that Neanderthals were shorter than modern humans, but physically stronger. Their tools were rough and simple, and not as refined as those of later Homo sapiens. Additionally, their food was not as varied: the 4 of their diet was the meat of large and medium sized animals. At some point after modern humans entered Europe and Asia, the Neanderthals vanished from Earth. The reason for the disappearance remains a mystery. There are, however, a number or theories. As modern Homo sapiens 5 their lands, they may have killed the Neanderthals off. Other possible causes include diseases introduced by the newcomers, or climate change.Another theory was that the Neanderthals had children with Homo sapiens,and gradually became part of their group. However, 1997 DNA analysis by geneticist Svante Paabo and his colleagues at the University of Munich determined that Neanderthal DNA is not included in the DNA of modern humans. This is rather convincing 6 that the majority of Neanderthals probably died out, and people alive today are not their 7.
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