资讯

广深港高铁票开售

Guangzhou-Shenzhen-HK high-speed train tickets go on sale

连接中国大陆和香港的高铁车票现已通过网络平台、电话热线和西九龙航站楼的柜台发售。广深港高铁全长141公里，内地段广州南至深圳北、福田站分别于2011年底、2015年底建成通车。香港段于2010年开工建设，由香港特别行政区全资兴建。这条线路于9月23日正式开通。乘客可以在12306官网或者手机APP上购买车票，购票时需提供大陆手机号。广深港高铁开通后，从香港到北京9小时便能到达，二等座位的票价是1077元（约合156.97美元）。

Tickets for high-speed trains linking Chinese mainland and Hong Kong go on sale via online platforms, telephone hotline and counters at the West Kowloon terminal.The Guangzhou-Shenzhen-Hong Kong Express railway is 141 kilometers long totally. The mainland section from Guangzhou South to Shenzhen North and Futian opened to traffic at the end of 2011 and 2015, respectively.The work on Hong Kong section began in 2010 and was constructed by the Hong Kong Special Administrative Region. The line officially opened on Sept 23.Tickets are available through 12306.cn platform or its app, but only for users with mainland phone numbers.The ticket price for second class of the less than nine hours’ journey from Hong Kong to Beijing is 1,077 yuan ($156.97).

中国正建造价值10亿元超导计算机

China building a superconducting computer

中国科学家正在建造一种低能耗高性能超导计算机，目标是在2022年完成原型机。中科院的科学家们于2017年11月启动了这项价值10亿元人民币(1.45亿美元)的项目。这台前所未有的机器将拥有中央处理器，运行频率为770千兆赫或更高。中国神威太湖之光是仅次于美国峰会的全球第二快超级计算机。据参与研发过程的一名研究人员称，该超级计算机一年需要15兆瓦的电量。计算机体系结构国家重点实验室常务副主任李晓维表示，建造超导计算机主要是为了减少未来高性能计算机的能源需求。

Chinese scientists are building a low-energy and high-performance superconducting computer, aiming to complete a prototype as early as 2022.Scientists at the Chinese Academy of Sciences (CAS) launched the project, worth one-billion yuan (145 million US dollars), last November.The unprecedented machine will have central processing units running at a frequency of 770 gigahertz or higher. China’s Sunway TaihuLight, the world’s second-fastest supercomputer behind the Summit in the US,requires 15 megawatts of power to run for one year, according to a researcher involved in the R&D process.Li Xiaowei, executive deputy director of the State Key Laboratory of Computer Architecture, is well acquainted with the project and said the main motivation to build a superconducting computer is to cut energy demands of future high-performance computers.

哈佛大学再登《华尔街日报》/《泰晤士高等教育》大学排名榜首

Harvard Stays on Top of WSJ/THE College Rankings

在本年度《华尔街日报》/《泰晤士高等教育》大学排名评比中，哈佛大学再次荣登榜首，同样位于剑桥的麻省理工学院位居第二。从本年度排名前50的学校可以看出，学校提供良好教育的能力不在于规模大小。《华尔街日报》/《泰晤士高等教育》排名重点考察大学能否很好地帮助学生为毕业后的人生做准备。总排名全面考量15个因素，总体分为四大类：学生成就（衡量标准包括毕业生的薪资）在总分数中占到40%，学校的学术资源占30%，学生的参与度占20%，学生与教员的多元化程度占10%。本次排名以18.9万份学生调查问卷为基础，问题包括课程有没有挑战，教师是否经常鼓励学生将课堂所学应用到实践中，以及是否有机会与同学合作。

Harvard University top this year’s Wall Street Journal/Times Higher Education College Rankings again, followed by its Cambridge neighbor, the Massachusetts Institute of Technology.The top 50 schools in this year’s rankings show that institutions small and large can deliver a great education. The WSJ/THE rankings emphasize how well a college will prepare students for life after graduation. The overall ranking is based on 15 factors across four categories: Forty percent of each school’s overall score comes from student outcomes, including a measure of graduate salaries, 30% from the school’s academic resources, 20%from how well it engages its students and 10% from the diversity of its students and staff.The rankings include 189,000 responses from students to survey questions including how challenging they find their classes, how often faculty encourage them to apply classroom instruction to the real world, and whether they have opportunities to collaborate with classmates.