首页>要闻>天下           天下         



2019年08月24日 19:57:37 | 作者:管知识 | 来源:新华社
摘要:美国研究人员日前在火星上找到了一个古老湖泊的痕迹。这使人们在该红色星球上发现数十亿年前生命迹象的希望大大增强。US researchers have uncovered traces of an ancient lake on Mars boosting hopes of discovering evidence that billions of years ago the Red planet hosted life.The lake, which dates back some 3.4 billion years, appears to have covered as much as 80 square miles and was up to 1,500 feet deep, said the team from the University of Colorado."This is the first unambiguous evidence of shorelines on the surface of Mars," said Boulder's research associate, Gaetano Di Achille, in a study published in the latest edition of Geophysical Research Letters."The identification of the shorelines and accompanying geological evidence allows us to calculate the size and volume of the lake, which appears to have formed about 3.4 billion years ago."Analysis of the images has shown the water carved out the canyon in which it was found, which then opened out into a valley depositing sediment which formed a delta."Finding shorelines is a holy grail of sorts to us," said assistant professor Brian Hynek, adding it showed the lake existed at a time when Mars was thought to have been cold and dry.Scientists believe the oldest surfaces on Mars formed during the wet and warm era known as the Noachan epoch, about 4.1 billion to 3.7 billion years ago, that featured a bombardment of large meteors and extensive flooding.The newly discovered lake is believed to date from the Hesperian era and postdates the end of the warm and wet period on Mars by 300 million years, according to the study.Scientists believe deltas next to the lake may well hold secrets about past life on Mars as such places on Earth have become the natural deposits of organic carbon and other markers of life. /06/75249必背句型:A:If the contract is null and void,the remedy is to rescind it.如果合同无效,救济方法是撤销合同B:And to put the parties in the position in which they were prior to the attempted agreement.使双方当事人回复到协议签署知情的地位The remedy is to change the contract.救济方法是更改合同There is no remedy about the contract.关于合同没有救济方法What is the remedy about the contract?关于合同的救济方法是什么?延伸阅读:A:In pleading,a party may request alternative relief.在诉辩状中,当事人可提出替换救济要求B:How did they request it?他们怎么提出?They have thought alternative methods.他们已经想出了替换的方法There are alternative places.这有替换的地方What is the alternative part?可替换的部分是什么? 6968

Heavy enquiries witness the quality of our products.大量询盘明我们产品质量过硬As soon as the price picks up, enquiries will revive.一旦价格回升,询盘将恢复活跃Enquiries carpets are getting more numerous.对地毯的询盘日益增加Enquiries are so large that we can only than allot you 0 cases.询盘如此之多,我们只能分给你们0箱货Enquiries are dwindling.询盘正在减少Enquiries are dried up.询盘正在绝迹They promised to transfer their future enquiries to Chinese Corporations.他们答应将以后的询盘转给中国公司Generally speaking, inquiries are made by the buyers.询盘一般由买方发出Mr. Baker is sent to Beijing to make an inquiry at China National Textiles Corporation.贝克先生来北京向中国纺织公司进行询价We regret that the goods you inquire about are not available.很遗憾,你们所询的货物现在无货In the import and export business, we often make inquiries at eign suppliers.在进出口交易中,我们常向外商询价To make an inquiry about our oranges, a representative of the Japanese company paid us a visit.为了对我们的橙子询价,那家日本公司的一名代表访问了我们We cannot take care of your enquiry at present.我们现在无力顾及你方的询盘Your enquiry is too vague to enable us to reply you.你们的询盘不明确,我们无法答复Now that weve aly made an inquiry about your s, will you please reply as soon as possible?既然我们已经对你们产品询价,可否尽快给予答复?China National Silk Corporation received the inquiry sheet sent by a British company.中国丝绸公司收到了英国一家公司的询价单Thank you your inquiry.谢谢你们的询价Words and Phrases外贸口语词汇inquire询盘;询价;询购to inquire about对……询价to make an inquiry发出询盘;向……询价enquiry询盘inquiry sheet询价单specific inquiry具体询盘an occasional inquiry偶尔询盘to keep inquiry in mind记住询盘 3779

第6期:Asking Help()X:Reception.May I help you?X:这里是务台,我可以帮上什么忙吗?Y:Yes .I locked myself out.May I borrow a duplicate key Room 1?Y:是的我把自己锁在门外了我可以借一把l号房的备用钥匙吗?X:Certainly.Where are you now?X:没问题,您现在在哪儿呢?Y:I’m right outside my room.Y:就在我房间外面X:OK.Just wait where you are.Ill send someone up to help you.X:好的,您就在那儿等一下,我会派人上楼去帮助你 66

  • 康指南襄阳市中心医院在那儿
  • 襄阳四院妇科医院打胎多少钱
  • 枣阳市人民医院治疗脱肛多少钱
  • 飞度云共享襄阳中医男科医院治疗妇科炎症多少钱
  • 丽大全襄阳人民医院在哪里
  • 襄阳市哪里做人流最好
  • 百家门户襄阳市看前列腺那家好
  • 襄阳妇幼保健院做流产多少钱
  • 襄阳前列腺肥大哪个医院看好
  • 预约面诊襄阳襄州区人民中心医院男科咨询
  • 襄阳市职业病防治医院男科医生美中文
  • 枣阳妇幼一二医院女子男科听说不错,有谁去过没?
  • 襄樊中医院流产怎么样好助手襄樊中医院电话号码
  • 襄阳妇幼保健院中医院治疗性功能障碍怎么样
  • 襄阳市第三人民医院白带异常怎么样豆瓣热点襄阳市中医院属于几级
  • 襄阳华光医院处女膜修补百科对话
  • 百科晚报襄樊市中医院地址哪里?
  • 襄阳市第四人民医院治疗好不好
  • 襄阳哪家医院能治脱发补发
  • 襄阳谷城县人民中心医院治疗腹胀怎么样
  • 保康妇幼保健院中医院男科咨询服务咨询襄阳无痛人流医院
  • 襄樊市中医院陈医生飞度云资讯
  • 襄樊市中医院多久了?正规吗
  • ask中文襄阳哪里的做青春痘体检医院便宜
  • 保康县妇幼保健中医院网上咨询
  • 襄阳妇保医院有人工授精吗妙手热点
  • 天涯爱问枣阳妇幼一二医院治疗腋臭狐臭多少钱
  • 南漳人民医院看泌尿科怎么样
  • 老河口妇幼保健院中医院治疗妇科炎症多少钱
  • 襄阳前列腺腋臭医院
  • 相关阅读
  • 明天开始一年内赚的盆满钵满穷的只剩钱的生肖
  • 百倍的热情千遍的呵护万分的用心品鉴华菱星马运煤专线上
  • 洛阳城市建设勘察设计院有限公司招聘信息
  • 阿梅你真的学了中医比较擅长是哪一方面的?你是在乡下学的吗
  • 深圳互金协会发布通知严禁成员单位开展首付贷等违规业务
  • 乌兰察布市召开十三五人才发展规划座谈会
  • 《梦想的声音》本周逆势上扬田馥甄浓妆惊艳颠覆
  • 特朗普要废了耶伦?华尔街的小心脏都要跳出来了!
  • 车市之星专访上海锦俊总经理尤悦梅
  • 地铁时代常青城暂无房源可售(图)
  • 编辑:百姓诊疗