【单选题】用树结构表示实体以及实体间联系的数据模型称为( )。
【简答题】在数据模型中,用树形结构表示实体以及实体间联系的是 ( ) 数据模型。
【单选题】贺知章在天宝三载 ( 公元 744 年 ) 辞去朝廷官职,告老返回故乡越州永兴 ( 今浙江萧山 ) ,写下《回乡偶书》:“离别家乡岁月多,近来人事半消磨。惟有门前镜湖水,春风不改旧时波。”下列说法中与该诗包含的哲理相同的是 ( ) 1青山依旧在,几度夕阳红 2青山遮不住,毕竟东流去 3山,依旧好;人,憔悴了 4空山新雨后,天气晚来秋
【简答题】国际商用机器公司(IBM)的创始人托马斯·次森曾经给其部下讲过这样一个故事。他说:有个男孩头一回弄到一条长裤,穿上一试太长了,他请奶奶剪短一点,但奶奶说家务事太多了。于是他去找妈妈,妈妈却回答说没时间。他又去求姐姐帮忙,但姐姐有约会,也不能帮他的忙。这个男孩十分沮丧,又担心明天不能穿这条裤子去上学,他就怀着志否不安的心情去睡觉了。奶奶干完了家务事想起孙子的裤子,把裤子剪短了一点。妈妈忙完了工作,把...
【简答题】国际商用机器公司(IBM)的创始人托马斯.沃森曾经给部下讲过这样一个故事。他说:有个男孩头一回买到一条长裤,穿上试了一下,太长了,他请奶奶剪短一点,但奶奶说家务事太多。于是他去找妈妈,妈妈却说没时间。他又去求姐姐帮忙,姐姐有约会,也不能帮他忙。这个男孩十分沮丧,又担心明天不能穿这条裤子去上学,他怀着忐忑的心情去睡觉了。奶奶干完家务,想起孙总的裤子,把裤子剪短了一些。妈妈忙完工作,把儿子的裤子再给剪...
【简答题】仿照《湖北宣传片》、《我叫四川》这两条视频,录制一段介绍自己家乡的视频。自己家乡的行政区域为县域(含)以下,内容必须包含名人、名品、名风景其中之一。时长不超过2分钟。文件大小不超过20M。 在学习通中提交,截止时间为2019年10月15日24:00。 附视频:1《湖北宣传片》;2《我叫四川》。 湖北宣传片.mp4 我叫四川.mp4
【单选题】?Look at the statements below and the news about business travel on the opposite page. ?Which news (A, B, C, D or E ) does each statement 1-8 refer to? ?For each statement 1-8, mark one letter (A, B, ...
A.
Travel Security Business travel is showing strong signs of a recovery after a time of uncertainty and those who are getting back on the road are finding themselves in a reassuringly security-conscious environment. Airlines, airports, hotels and governments have now placed travel safety high on their agendas and this can only have positive repercussions for those who travel most frequently -- business travelers. Biometrics -- a group of technologies that can identify individuals by their physical characteristics -- are being used to increase travel security and will change the way we travel forever.
B.
Recovery in Airline Industry The airline industry is beginning to stabilize after a period of turmoil, say the latest figures by OAG, the world's leading source of flight schedule information. The annual OAG report, which compares the number of flight schedules worldwide in one week in December 2003 with the same week in 2002, reported a 1% increase, equaling to more than 3,000 additional flights to airline schedules. The rise indicates a long-awaited recovery in business travel and a renewed confidence in the airline industry. The strongest growth was seen in the traffic to and from the Asia Pacific region, which jumped by 8%, while the number of flights within the region was also up by 6%.
C.
Asian Compaigns Some Asian countries have launched campaigns aimed specifically at business visitors. Singapore, for example, is hoping to increase its number of business visitors from 1.25 million in 2003 to 1.8 million in 2005 through its US $15 million 'Make It Singapore' campaign, launched in November 2003. 'We want to draw more business visitors to Singapore through an attractive basket of incentives for event organizers,' said a spokesperson. 'The incentives include complimentary rooms from participating hotels, special discounts on food and beverage for functions, special rates from Singapore Airlines, among others.'
D.
SMS service Scandinavian Airlines (SAS) is now offering frequent travelers the chance to get up-to-date information on fright arrivals, departures, delays, seat availability and schedules by using SMS texting. The free service is available to members of its frequent flyer program EuroBonus and to travelers who have booked a Travel Pass or Travel Pass Corporate. Passengers who register for the service will automatically receive information on any irregularity affecting the departure and arrival time of the flights on which they are booked.
E.
Relax In Style Passengers flying in JAL's Executive Class 'Seasons' from Tokyo to Chicago and Paris can now sleep more soundly in the airline's Shell Flat Seat. The airline will roll out the seat on routes from Tokyo to Frankfurt, Los Angeles and San Francisco later in 2004. The shell shaped seat is designed for maximum privacy and relaxation and reclines 170 degrees. Later this year, JAL will also introduce the Connexion by Boeing high-speed broadband Internet and email service on beard flights, starting with its Tokyo-London route. New advanced technolog
【多选题】文化人类学家克娄伯的文化观主要包含( )
A.
文化是敞开的,不是封闭的,是承上启下的,不是突然创造出来的。
B.
对外来文化,只要效用大而且有可接受的条件,就会很快传播。
C.
文化是一个整体,但也可划分层次,还有一些从属文化,如不同阶级的、不同职业的、不同年龄的、甚至不同性别的,以及不同区域的如城乡文化的不同等。
D.
整个世界存在四种现象:质与力的现象、生命的现象、意识的现象、社会生活或文化的现象。整个文化系统可划分基本形貌和次级形貌。