A Trip to Guangzhou,I went to Guangzhou for vacation during my summer break.It was an amazing experience!The city is full of beautiful parks,delicious food,and interesting culture.I visited the Canton Tower,which is o...A Trip to Guangzhou,I went to Guangzhou for vacation during my summer break.It was an amazing experience!The city is full of beautiful parks,delicious food,and interesting culture.I visited the Canton Tower,which is one of the tallest towers in the world.From the top,I could see the whole city and it was so breathtaking!I also tried many local snacks like dim sum and BBQ pork,which were so tasty.The people were also very friendly and made me feel welcome.I had a great time in Guangzhou and I hope to visit again someday.展开更多
I was in fifth grade and about to take a science test. Since first grade I had always been good at school. I always did well in tests.However, I had difficulty learning Science well when it came to fifth grade. I coul...I was in fifth grade and about to take a science test. Since first grade I had always been good at school. I always did well in tests.However, I had difficulty learning Science well when it came to fifth grade. I couldn't seem to understand it no matter how hard I tried. I was stressed.展开更多
He Never Heard a Thing I worked at a post office.One day,one angry lady rushed to my desk,I responded,"What's the trouble?""went out this morning,"she began,"and when I came home I found a...He Never Heard a Thing I worked at a post office.One day,one angry lady rushed to my desk,I responded,"What's the trouble?""went out this morning,"she began,"and when I came home I found a card saying the mailman tried to deliver a parcel but no one was home.But my husband was in all morning.He never heard a thing!"展开更多
Activity 1.Think about the following questions and write down your answers before reading the text.1.Have you ever tried Liuzhou Luosifen?If so,what did you think of it?2.What makes Liuzhou Luosifen unique compared to...Activity 1.Think about the following questions and write down your answers before reading the text.1.Have you ever tried Liuzhou Luosifen?If so,what did you think of it?2.What makes Liuzhou Luosifen unique compared to other types of noodles?展开更多
Depressed teens struggle for understanding and treatment Yu Nian couldn’t remember how many times she had tried to convince her mother that she wanted to end her life,only to hear her mother respond,"I think you...Depressed teens struggle for understanding and treatment Yu Nian couldn’t remember how many times she had tried to convince her mother that she wanted to end her life,only to hear her mother respond,"I think you’re just bored."Having suffered from verbal bullying by a classmate for years,Yu,then aged 12,went to see a doctor alone in 2019 after she started hurting herself on her hands,legs,and other parts of her body.She was diagnosed with depressive tendencies,but tried and failed many times to get her mother and her school counselor to take her diagnosis seriously.展开更多
Fixed samples are introduced in the quantum Monte Carlo method to reduce square devia-tions so as to convergently optimize the parameters of tried wave functions. The tried wavefunctions attained in this way have been...Fixed samples are introduced in the quantum Monte Carlo method to reduce square devia-tions so as to convergently optimize the parameters of tried wave functions. The tried wavefunctions attained in this way have been used to calculate energies of H_2, Li_2 and H_2O mole-cules. The results are satisfactory.展开更多
In this paper, the formation of the coherent structures in the wall region of a turbulent boundary layer was studied, using the nonlinear theory of the hydrodynamic stability. The spanwise and streamwise wavelengths o...In this paper, the formation of the coherent structures in the wall region of a turbulent boundary layer was studied, using the nonlinear theory of the hydrodynamic stability. The spanwise and streamwise wavelengths of the most amplified unstable wave obtained by this study were found in good agreement with the experiments , which makes the distinct feature of this study in the present paper, as the basis of the stability analysis, a more rational velocity profile has been used, which is different from that of the turbulent mean flow. And also, the new nonlinear theory was used. The result is useful in understanding of the quasi-periodicity of the coherent structure in the turbulent boundary layer.展开更多
激活·素养解读实践·读写整合Falling in love with biking爱上骑自行车1The first time my parents watched me compete in a mountain bike race, they tried to get me to quit. While I was riding down a hill, I hit a h...激活·素养解读实践·读写整合Falling in love with biking爱上骑自行车1The first time my parents watched me compete in a mountain bike race, they tried to get me to quit. While I was riding down a hill, I hit a huge rock, flew through the air and crashed to the ground.展开更多
Dear Editor,Phenotypic plasticity of an organism by modifying morphological and physiological traits responding to diverse environments is widely recognized across animal taxa(Muñoz-Muñoz et al.,2021;Donihue...Dear Editor,Phenotypic plasticity of an organism by modifying morphological and physiological traits responding to diverse environments is widely recognized across animal taxa(Muñoz-Muñoz et al.,2021;Donihue et al.,2021;Giacomini et al.,2022;Zamora-Camacho et al.,2022;Jiang et al.,2022;Chen et al.,2023).The brain,as a critical phenotypic trait,displays a significant variation in size among different species(Striedter,2006).展开更多
With the advancement of the Internet economy in recent years,Zhang Junjie and his team have tried to integrate the products of their community business into it by using short videos,livestreaming,and other popular mar...With the advancement of the Internet economy in recent years,Zhang Junjie and his team have tried to integrate the products of their community business into it by using short videos,livestreaming,and other popular marketing methods to introduce his village life to the world.展开更多
The world is currently facing a highly contagious and fatal pandemic caused by SARS-CoV-2,which is also the first pandemic caused by a coronavirus yet.As of 25 August 2020,the number of confirmed COVID-19 patients has...The world is currently facing a highly contagious and fatal pandemic caused by SARS-CoV-2,which is also the first pandemic caused by a coronavirus yet.As of 25 August 2020,the number of confirmed COVID-19 patients has exceeded 23,518,343 worldwide,with a death toll of over 810,492.1 To date,the greatest challenge we face is the incomplete knowledge of both SARS-CoV-2 and COVID-19,resulting in a lack of effective drugs and adequate treatment strategies.Despite various treatment options for critical COVID-19 patients,including extracorporeal membrane oxygenation,ventilation,tracheal intubation,circulatory support,and non-specific antiviral drugs,clinical outcomes are unsatisfactory.2 In particular,some mild or common COVID-19 patients experience sudden and rapid deterioration with the onset of fatal cytokine storm syndrome which cannot be treated by any conventional therapies.Therefore,from 2 February 2020 to 4 March 2020,the China National Health Commission has issued successively the 1st–7th editions of the Official Guidance of Diagnosis and Management for COVID-19 and formulated preliminary guidelines for the clinical application of convalescent plasma therapy(CPT)for critical COVID-19 patients.展开更多
1 Introduction.Recently,some research efforts[1]have tried to combine selfsupervised learning and active learning to reduce the cost of labeling samples.However,this method is difficult to effectively improve the mode...1 Introduction.Recently,some research efforts[1]have tried to combine selfsupervised learning and active learning to reduce the cost of labeling samples.However,this method is difficult to effectively improve the model performance because it does not consider the feature representation performance of the examples on the pretext task.In order to overcome this shortcoming,we propose a deep active sampling framework with self-supervised representation learning.展开更多
It was eleven o'clock at night,a large woman was walking towards home.She had a large purse with everything but money.It hung right behind her shoulder.A boy ran up and tried to snatch her purse.The large woman si...It was eleven o'clock at night,a large woman was walking towards home.She had a large purse with everything but money.It hung right behind her shoulder.A boy ran up and tried to snatch her purse.The large woman simply turned around,caught the boy by his shirt,and shook him until his teeth rattled.展开更多
Recently,Quantitative Biology(QB)held a discussion on"Al(artificial intelligence)for Life Science"among editorial board members and interested scholars in anticipation of rapid development of this growing ar...Recently,Quantitative Biology(QB)held a discussion on"Al(artificial intelligence)for Life Science"among editorial board members and interested scholars in anticipation of rapid development of this growing area after AlphaGo and ChatGPT mania.Many young people tend to get confused between facts and fictions;heated debates are unavoidable even among their mentors.When deep learning as represented by convolutional neural networks and LSTM(long shortterm memory)was made available for bioinformatics students,many of them rushed into this research field and tried to adopt these methods in all their projects without knowing the history that these tools were becoming successful consistently with Moore's Law(relating to rapid computer technology advances)展开更多
Without any research and without learning much about the democratic systems in socialist republics, and above all, without realizing how much development China has accomplished under its concept of democracy, the West...Without any research and without learning much about the democratic systems in socialist republics, and above all, without realizing how much development China has accomplished under its concept of democracy, the West, particularly the United States, has constantly tried to impose its own values on China and feels that they are the sole criteria for democracy on planet Earth.展开更多
本文主人公打破了老师的窗户,在勇于承认错误之后,他收获颇多。主题语境:优秀品质篇幅:314词建议用时:6分钟~1My teacher picked up a piece of broken glass and asked,“Who broke this window?”Thirty boys tried to think about no...本文主人公打破了老师的窗户,在勇于承认错误之后,他收获颇多。主题语境:优秀品质篇幅:314词建议用时:6分钟~1My teacher picked up a piece of broken glass and asked,“Who broke this window?”Thirty boys tried to think about not only what they had done,but also what their teacher may have found out.She seldom became angry,but she was this time.展开更多
1When De Amicis moved from Ambly⁃sur⁃Meuse,in the Orne region of France,to Ginai in Normandy,with her family a year ago,the family tried to keep their three cats,Felys,Crapaud,and Cocci,in the new house,as they were w...1When De Amicis moved from Ambly⁃sur⁃Meuse,in the Orne region of France,to Ginai in Normandy,with her family a year ago,the family tried to keep their three cats,Felys,Crapaud,and Cocci,in the new house,as they were worried they'd become lost in their new surroundings.But somehow,Cocci,a sweet gray⁃and⁃white cat,left home and disappeared.展开更多
On sweaty cheese,stolens lippers and the joy of pig guts It was when my mother tried to smuggle cheese(a large block of English cheddar)into China for me that I realized the extent of her misconceptions about the coun...On sweaty cheese,stolens lippers and the joy of pig guts It was when my mother tried to smuggle cheese(a large block of English cheddar)into China for me that I realized the extent of her misconceptions about the country.'Don’t you get sick of eating rice all the time?'she and other members of my family would repeatedly ask when I returned home every year.'They eat monkey brains over there don’t they?'展开更多
文摘A Trip to Guangzhou,I went to Guangzhou for vacation during my summer break.It was an amazing experience!The city is full of beautiful parks,delicious food,and interesting culture.I visited the Canton Tower,which is one of the tallest towers in the world.From the top,I could see the whole city and it was so breathtaking!I also tried many local snacks like dim sum and BBQ pork,which were so tasty.The people were also very friendly and made me feel welcome.I had a great time in Guangzhou and I hope to visit again someday.
文摘I was in fifth grade and about to take a science test. Since first grade I had always been good at school. I always did well in tests.However, I had difficulty learning Science well when it came to fifth grade. I couldn't seem to understand it no matter how hard I tried. I was stressed.
文摘He Never Heard a Thing I worked at a post office.One day,one angry lady rushed to my desk,I responded,"What's the trouble?""went out this morning,"she began,"and when I came home I found a card saying the mailman tried to deliver a parcel but no one was home.But my husband was in all morning.He never heard a thing!"
文摘Activity 1.Think about the following questions and write down your answers before reading the text.1.Have you ever tried Liuzhou Luosifen?If so,what did you think of it?2.What makes Liuzhou Luosifen unique compared to other types of noodles?
文摘Depressed teens struggle for understanding and treatment Yu Nian couldn’t remember how many times she had tried to convince her mother that she wanted to end her life,only to hear her mother respond,"I think you’re just bored."Having suffered from verbal bullying by a classmate for years,Yu,then aged 12,went to see a doctor alone in 2019 after she started hurting herself on her hands,legs,and other parts of her body.She was diagnosed with depressive tendencies,but tried and failed many times to get her mother and her school counselor to take her diagnosis seriously.
基金Project supported by the National Natural Science Foundation of China.
文摘Fixed samples are introduced in the quantum Monte Carlo method to reduce square devia-tions so as to convergently optimize the parameters of tried wave functions. The tried wavefunctions attained in this way have been used to calculate energies of H_2, Li_2 and H_2O mole-cules. The results are satisfactory.
基金Project supported by NSFC and a Foundation from Educational Council of China
文摘In this paper, the formation of the coherent structures in the wall region of a turbulent boundary layer was studied, using the nonlinear theory of the hydrodynamic stability. The spanwise and streamwise wavelengths of the most amplified unstable wave obtained by this study were found in good agreement with the experiments , which makes the distinct feature of this study in the present paper, as the basis of the stability analysis, a more rational velocity profile has been used, which is different from that of the turbulent mean flow. And also, the new nonlinear theory was used. The result is useful in understanding of the quasi-periodicity of the coherent structure in the turbulent boundary layer.
文摘激活·素养解读实践·读写整合Falling in love with biking爱上骑自行车1The first time my parents watched me compete in a mountain bike race, they tried to get me to quit. While I was riding down a hill, I hit a huge rock, flew through the air and crashed to the ground.
基金This research has received funding from the National Natural Science Foundation of China(32300358,32370456)the Key Project of Natural Science Foundation of Sichuan Province(22NSFSC0011).
文摘Dear Editor,Phenotypic plasticity of an organism by modifying morphological and physiological traits responding to diverse environments is widely recognized across animal taxa(Muñoz-Muñoz et al.,2021;Donihue et al.,2021;Giacomini et al.,2022;Zamora-Camacho et al.,2022;Jiang et al.,2022;Chen et al.,2023).The brain,as a critical phenotypic trait,displays a significant variation in size among different species(Striedter,2006).
文摘With the advancement of the Internet economy in recent years,Zhang Junjie and his team have tried to integrate the products of their community business into it by using short videos,livestreaming,and other popular marketing methods to introduce his village life to the world.
文摘The world is currently facing a highly contagious and fatal pandemic caused by SARS-CoV-2,which is also the first pandemic caused by a coronavirus yet.As of 25 August 2020,the number of confirmed COVID-19 patients has exceeded 23,518,343 worldwide,with a death toll of over 810,492.1 To date,the greatest challenge we face is the incomplete knowledge of both SARS-CoV-2 and COVID-19,resulting in a lack of effective drugs and adequate treatment strategies.Despite various treatment options for critical COVID-19 patients,including extracorporeal membrane oxygenation,ventilation,tracheal intubation,circulatory support,and non-specific antiviral drugs,clinical outcomes are unsatisfactory.2 In particular,some mild or common COVID-19 patients experience sudden and rapid deterioration with the onset of fatal cytokine storm syndrome which cannot be treated by any conventional therapies.Therefore,from 2 February 2020 to 4 March 2020,the China National Health Commission has issued successively the 1st–7th editions of the Official Guidance of Diagnosis and Management for COVID-19 and formulated preliminary guidelines for the clinical application of convalescent plasma therapy(CPT)for critical COVID-19 patients.
文摘1 Introduction.Recently,some research efforts[1]have tried to combine selfsupervised learning and active learning to reduce the cost of labeling samples.However,this method is difficult to effectively improve the model performance because it does not consider the feature representation performance of the examples on the pretext task.In order to overcome this shortcoming,we propose a deep active sampling framework with self-supervised representation learning.
文摘It was eleven o'clock at night,a large woman was walking towards home.She had a large purse with everything but money.It hung right behind her shoulder.A boy ran up and tried to snatch her purse.The large woman simply turned around,caught the boy by his shirt,and shook him until his teeth rattled.
文摘Recently,Quantitative Biology(QB)held a discussion on"Al(artificial intelligence)for Life Science"among editorial board members and interested scholars in anticipation of rapid development of this growing area after AlphaGo and ChatGPT mania.Many young people tend to get confused between facts and fictions;heated debates are unavoidable even among their mentors.When deep learning as represented by convolutional neural networks and LSTM(long shortterm memory)was made available for bioinformatics students,many of them rushed into this research field and tried to adopt these methods in all their projects without knowing the history that these tools were becoming successful consistently with Moore's Law(relating to rapid computer technology advances)
文摘Without any research and without learning much about the democratic systems in socialist republics, and above all, without realizing how much development China has accomplished under its concept of democracy, the West, particularly the United States, has constantly tried to impose its own values on China and feels that they are the sole criteria for democracy on planet Earth.
文摘本文主人公打破了老师的窗户,在勇于承认错误之后,他收获颇多。主题语境:优秀品质篇幅:314词建议用时:6分钟~1My teacher picked up a piece of broken glass and asked,“Who broke this window?”Thirty boys tried to think about not only what they had done,but also what their teacher may have found out.She seldom became angry,but she was this time.
文摘1When De Amicis moved from Ambly⁃sur⁃Meuse,in the Orne region of France,to Ginai in Normandy,with her family a year ago,the family tried to keep their three cats,Felys,Crapaud,and Cocci,in the new house,as they were worried they'd become lost in their new surroundings.But somehow,Cocci,a sweet gray⁃and⁃white cat,left home and disappeared.
文摘On sweaty cheese,stolens lippers and the joy of pig guts It was when my mother tried to smuggle cheese(a large block of English cheddar)into China for me that I realized the extent of her misconceptions about the country.'Don’t you get sick of eating rice all the time?'she and other members of my family would repeatedly ask when I returned home every year.'They eat monkey brains over there don’t they?'
