“It’s an extremely large area, it would have been very lush (苍翠繁茂的), and it would have actually provided a suitable habitat for modern humans,” she said. She and her team studied mitochondrial (线粒体的) DNA (mtDNA) from people who live in south Africa, such as the Khoisan ...
1. According to Hayes, where did humans come from?A: Australia.B: Botswana.C: South Africa.D: Latin America.2. Hayes and her team studied mtDNA because ___.A: it is the most common type of DNA humans shareB: there is a new technology to test mtDNAC: it is only passed down from...
根据文章第一段Where did humans come from? An Australian researcher believes that she's found the answer: a river valley in the African country of Botswana.可知一名澳大利亚研究人员认为她找到了答案:非洲国家博茨瓦纳的一个河谷。故选:C。 (2) 细节理解题。根据文章第四段中She and her team studied ...
【题目】Where did humans come from? An Australian researcher believes that she's found the answer: river valley in the African countryof Botswana (博瓦纳).Professor Vanessa Hayes from the Garvan Institute of Medical Research in Sydney said she and her team have traced (追踪) modern humans ...
百度试题 结果1 题目Where did native Americans come from? A. America. B. Asia. C. Africa. D. Europe 相关知识点: 试题来源: 解析 D 反馈 收藏
句意:——狮子从哪里来?——我想它们来自非洲。考查特殊疑问句助动词的用法。are是(复数);is是(单数);does做(单数);do做(原形)。come from“来自”,是实义动词,在疑问句中,需借助助动词。主语为lions,是复数形式。故选D。结果一 题目 —Where lions come from? —I think they come from Africa.A.are...
D【答案】D【核心短语/词汇】come from: 来自【翻译】—这些动物来自哪里?—它们来自非洲。【解析】is/are是be动词,does/do是助动词。is/does用于主语是第三人称单数时;are/do用于主语是复数或第二人称you时。根据原句中的come可知,本题是行为动词作谓语的一般现在时的特殊疑问句。含有行为动词的一般现在时的特...
Where did the ancestors of modern humans come from? It is commonly believed that they came from Africa. 1___.Listed as one of China's top 10 new archaeological discoveries of 2019 , the Jiegedong site is home to preserved (保存的) human remains and stone tools from 15 ,000 to 100 ...
1.According to Hayed, where did humans come from? A.AustraliaB.BotswanaC.South AfricaD.Latin America2.The underline word "ancestry" in the passage means " " in Chinese.A.体型B.籍贯C.性格D.祖先3.Hayes and her team studied mtDNA because .A.it is the most common type of DNA humans ...
“It’s an extremely large area, it would have been very lush (苍翠繁茂的), and it would have actually provided a suitable habitat for modern humans,” she said. She and her team studied mitochondrial (线粒体的) DNA (mtDNA) from people who live in south Africa, such as the Khoisan ...