This study analyzes Agatha Christie’s mystery novel And Then There Were None from five dimensions—the nursery rhyme,Soldier Island,role of characters,death and psychological interaction—to explore its multi-dimensi...This study analyzes Agatha Christie’s mystery novel And Then There Were None from five dimensions—the nursery rhyme,Soldier Island,role of characters,death and psychological interaction—to explore its multi-dimensional metaphors and their deeper connotations.The key findings reveal that the nursery rhyme serves as a narrative thread,symbolizing both a fate-driven trial and societal rules manipulating individual destinies;Soldier Island’s isolation mirrors moral problem and emotional detachment in modern society;the characters,linked to their crimes and deaths,embody universal human flaws;death acts as both a form of justice and a critique of civilization’s fragility;the psychological struggles among the characters expose the collapse of morality under survival crises.By decoding these interconnected metaphors,the study interprets the work’s thematic framework of Sin and Punishment,offering insights into tensions between societal norms and individual existence today.展开更多
The ratio of metal：P stoichiometry was used to identify the accumulation pathways of heavy metals （V, Cr, Co, Ni, Cu, Cd, and Pb） from periphyton to snails Cipangopaludina chinensis Gray （C. chinensis） in the Bai...The ratio of metal：P stoichiometry was used to identify the accumulation pathways of heavy metals （V, Cr, Co, Ni, Cu, Cd, and Pb） from periphyton to snails Cipangopaludina chinensis Gray （C. chinensis） in the Bai River watershed. The results showed that periphyton communities were mainly composed of two types of algae, filamentous green algae and unicellular diatoms. The proportion of unicellular diatoms in the periphyton community is a key factor that influences metal accumulation in C. chinensis. The V, Cr, Co, Ni, and Cd content of C. chinensis increased steadily as the corresponding metal content of periphyton increased, but Cu and Pb in the snail did not increase in the periphyton. Mechanisms of V, Cr, and Ni accumulation were found to be related to the proportion of diatoms, while Cd and Pb accumulation were dependent on the physiological characteristics of C. chinensis. The accumulation of Cu in C. chinensis was closely related to their grazing behavior. The metal：P stoichiometry revealed that Cr, Ni, and Cd can reduce the potential ecological risks associated with increased P inputs to the ecosystem. V and Co were considered to be relatively safe, regardless of the periphyton P content. Finally, Pb may not be prone to transfer to higher trophic levels, and may pose the lowest ecological risks of the studied heavy metals, but Cu can cause potential ecological risks when eutrophication has occurred.展开更多
As early as the 1920sand the 1930s,thelate Guiseppe Tucci,anoted ltalian Tibetolo-gist.turned his eyes toancient tombs in westernTibet. He found tombs coveredwith stone slabs in Leh City inLadakh According to hiss rec...As early as the 1920sand the 1930s,thelate Guiseppe Tucci,anoted ltalian Tibetolo-gist.turned his eyes toancient tombs in westernTibet. He found tombs coveredwith stone slabs in Leh City inLadakh According to hiss recol-lection,"tombs,built withunpolished stones....eachmeasure 1.8 meters long,1.4meters wide and 1.8 metersdeep. Handmadepotteries....were sometimesadorned with deep red pat-terns."展开更多
The article“Thirty-year mystery of birth and fertility in China”,written by Xiaochun Qiao,was originally published electronically on the publisher’s internet portal on 26 June 2024 without open access.With the auth...The article“Thirty-year mystery of birth and fertility in China”,written by Xiaochun Qiao,was originally published electronically on the publisher’s internet portal on 26 June 2024 without open access.With the author(s)’decision to opt for Open Choice the copyright of the article changed on 24 October 2024 to The Author 2024 and the article is forthwith distributed under a Creative Commons Attribution Creative Commons licence CC BY:This license enables reusers to distribute,remix,adapt,and build upon the material in any medium or format,so long as attribution is given to the creator.The license allows for commercial use.展开更多
1 In a town of fewer than 1,000 people,it can be hard to keep a secret.And yet no one in McBride,a mountain community in British Columbia,can figure out how a local deer came to be wearing a reflective jacket or why t...1 In a town of fewer than 1,000 people,it can be hard to keep a secret.And yet no one in McBride,a mountain community in British Columbia,can figure out how a local deer came to be wearing a reflective jacket or why the deer has been so hard to track down.展开更多
My favorite TV series is Stranger Things.It is a popular American science fiction drama.The story takes place in a small town in the1980s.A young b oy named W ill mysteriously disappears.His friends,family,and the pol...My favorite TV series is Stranger Things.It is a popular American science fiction drama.The story takes place in a small town in the1980s.A young b oy named W ill mysteriously disappears.His friends,family,and the police start to search for answers.As they look for Will,they find something strange:there are some mysterious forces and a girl with special powers.展开更多
Dr Emily Thompson decided it was time to set sail on her first major maritime research expedition.She had always been fascinated by the mysteries of the ocean and wanted to uncover the secrets hidden beneath the waves...Dr Emily Thompson decided it was time to set sail on her first major maritime research expedition.She had always been fascinated by the mysteries of the ocean and wanted to uncover the secrets hidden beneath the waves.Her team boarded the research vessel early in the morning,excited at the adventure that awaited them.展开更多
时间,是一种可感的概念,一种可见的现象。我国有妇孺皆知形容时间的成语——光阴似箭,日月如梭。然而,本文却出语惊人——One way of thinking about time is to imagine a world without time.以及as long as they debate the nature o...时间,是一种可感的概念,一种可见的现象。我国有妇孺皆知形容时间的成语——光阴似箭,日月如梭。然而,本文却出语惊人——One way of thinking about time is to imagine a world without time.以及as long as they debate the nature of time, time will remain a mystery.更令读者不敢设想的是,本文提出了一个问题:Can time move backward?此文思维独到,想象驰骋。它不仅令人信服地追溯了the first accepted periods of time,遥想年月日的产生,而且相应回顾了sundial(日晷),hourglass(沙漏)以及mechanical clocks and watches的先后问市,以及24 time areas的诞生。值得一提的是,本文系一篇广播文稿,语言明快上口,简洁风趣。如有兴致,不妨诵读一遍。你一定会感到别样的情趣。展开更多
On Oct 1,2017,Mystery of Terracotta Warriors aired on Channel 1 of Romania’s state televisio n,in troducing the achievements that China’s Shaaxi province and the city of Xi’an had made in conserving historic herita...On Oct 1,2017,Mystery of Terracotta Warriors aired on Channel 1 of Romania’s state televisio n,in troducing the achievements that China’s Shaaxi province and the city of Xi’an had made in conserving historic heritages and developing the economy,tourism,education and culture,as well as changes that had taken place in society,urban appearance and people’s lives.Shaanxi,especially its capital,Xi’an,展开更多
文摘This study analyzes Agatha Christie’s mystery novel And Then There Were None from five dimensions—the nursery rhyme,Soldier Island,role of characters,death and psychological interaction—to explore its multi-dimensional metaphors and their deeper connotations.The key findings reveal that the nursery rhyme serves as a narrative thread,symbolizing both a fate-driven trial and societal rules manipulating individual destinies;Soldier Island’s isolation mirrors moral problem and emotional detachment in modern society;the characters,linked to their crimes and deaths,embody universal human flaws;death acts as both a form of justice and a critique of civilization’s fragility;the psychological struggles among the characters expose the collapse of morality under survival crises.By decoding these interconnected metaphors,the study interprets the work’s thematic framework of Sin and Punishment,offering insights into tensions between societal norms and individual existence today.
基金supported by the National Natural Science Foundation of China (No. 21107126)the Ministry ofWater Resources’ Special Funds for Scientific Research on Public Causes (No. 200901008)the National Water Pollution Control Program (Special Water Project) (No.2008ZX07209-010)
文摘The ratio of metal：P stoichiometry was used to identify the accumulation pathways of heavy metals （V, Cr, Co, Ni, Cu, Cd, and Pb） from periphyton to snails Cipangopaludina chinensis Gray （C. chinensis） in the Bai River watershed. The results showed that periphyton communities were mainly composed of two types of algae, filamentous green algae and unicellular diatoms. The proportion of unicellular diatoms in the periphyton community is a key factor that influences metal accumulation in C. chinensis. The V, Cr, Co, Ni, and Cd content of C. chinensis increased steadily as the corresponding metal content of periphyton increased, but Cu and Pb in the snail did not increase in the periphyton. Mechanisms of V, Cr, and Ni accumulation were found to be related to the proportion of diatoms, while Cd and Pb accumulation were dependent on the physiological characteristics of C. chinensis. The accumulation of Cu in C. chinensis was closely related to their grazing behavior. The metal：P stoichiometry revealed that Cr, Ni, and Cd can reduce the potential ecological risks associated with increased P inputs to the ecosystem. V and Co were considered to be relatively safe, regardless of the periphyton P content. Finally, Pb may not be prone to transfer to higher trophic levels, and may pose the lowest ecological risks of the studied heavy metals, but Cu can cause potential ecological risks when eutrophication has occurred.
文摘As early as the 1920sand the 1930s,thelate Guiseppe Tucci,anoted ltalian Tibetolo-gist.turned his eyes toancient tombs in westernTibet. He found tombs coveredwith stone slabs in Leh City inLadakh According to hiss recol-lection,"tombs,built withunpolished stones....eachmeasure 1.8 meters long,1.4meters wide and 1.8 metersdeep. Handmadepotteries....were sometimesadorned with deep red pat-terns."
文摘The article“Thirty-year mystery of birth and fertility in China”,written by Xiaochun Qiao,was originally published electronically on the publisher’s internet portal on 26 June 2024 without open access.With the author(s)’decision to opt for Open Choice the copyright of the article changed on 24 October 2024 to The Author 2024 and the article is forthwith distributed under a Creative Commons Attribution Creative Commons licence CC BY:This license enables reusers to distribute,remix,adapt,and build upon the material in any medium or format,so long as attribution is given to the creator.The license allows for commercial use.
文摘1 In a town of fewer than 1,000 people,it can be hard to keep a secret.And yet no one in McBride,a mountain community in British Columbia,can figure out how a local deer came to be wearing a reflective jacket or why the deer has been so hard to track down.
文摘My favorite TV series is Stranger Things.It is a popular American science fiction drama.The story takes place in a small town in the1980s.A young b oy named W ill mysteriously disappears.His friends,family,and the police start to search for answers.As they look for Will,they find something strange:there are some mysterious forces and a girl with special powers.
文摘Dr Emily Thompson decided it was time to set sail on her first major maritime research expedition.She had always been fascinated by the mysteries of the ocean and wanted to uncover the secrets hidden beneath the waves.Her team boarded the research vessel early in the morning,excited at the adventure that awaited them.
文摘时间,是一种可感的概念,一种可见的现象。我国有妇孺皆知形容时间的成语——光阴似箭,日月如梭。然而,本文却出语惊人——One way of thinking about time is to imagine a world without time.以及as long as they debate the nature of time, time will remain a mystery.更令读者不敢设想的是,本文提出了一个问题:Can time move backward?此文思维独到,想象驰骋。它不仅令人信服地追溯了the first accepted periods of time,遥想年月日的产生,而且相应回顾了sundial(日晷),hourglass(沙漏)以及mechanical clocks and watches的先后问市,以及24 time areas的诞生。值得一提的是,本文系一篇广播文稿,语言明快上口,简洁风趣。如有兴致,不妨诵读一遍。你一定会感到别样的情趣。
文摘On Oct 1,2017,Mystery of Terracotta Warriors aired on Channel 1 of Romania’s state televisio n,in troducing the achievements that China’s Shaaxi province and the city of Xi’an had made in conserving historic heritages and developing the economy,tourism,education and culture,as well as changes that had taken place in society,urban appearance and people’s lives.Shaanxi,especially its capital,Xi’an,
