[简答题] The timing, route and point of origin of the first colonization of the Americas remains a most arguable topic in human (47)______. However, a new theory claimed that a "LOST TRIBE" that reached America from Australia may have been the first Native Americans. If proved by DNA evidence, the theory will shatter long (48)______ beliefs about the southerly (49)______ of people who entered America across the Bering Strait, found it empty and occupied it. On this theory rests the authority of Native Americans (previously known as Red Indians) to have been the first true Americans. To a European, this may seem like an academic (50)______, but to Americans it is a philosophical question about (51)______, Silvia Gonzales, of Liverpool John Moores University said. She argued that there were several migration waves into the Americas at different times by different human groups. Her claims are based on (52)______ found in the Baja California Peninsula of Mexico that have skulls quite

最新试题

• ●    [多选题] 电灼伤、火焰烧伤或高温气、水烫伤均应（）
• ●    [单选题]电力线路电流速断保护范围是( )。
• ●    在某餐馆中，所有的菜或属于川菜系或属于粤菜系，张先生点的菜中有川菜，因此，张先生点的菜中没有粤菜。
• ●    [单选题]易自燃物质事故处置深入内部灭火时,沿着承重墙和承重柱,梯次掩护()行进。
• ●    [多选题]根据《配电网运维规程》规定，配电网通道维护的主要内容有（）。
• ●    [单选题]施工现场室内220V灯具距地面的距离不得小于( )。