Atoll中,mAp bASed oNENviRoNmeNt(RASteR)话务地图是基于()进行的。
A.用户密度
B.用户数
C.基站
D.多边形
A.用户密度
B.用户数
C.基站
D.多边形
听力原文: The World Health Organization warns between 25 and 35 percent of the world population could be affected by a human influenza pandemic, but the WHO says most people would survive. Health experts are meeting at the World Health Organization in Geneva to map out a plan of action to combat the possible spread of avian flu.
The World Health Organization Global Influenza Program Director Klaus Stohr says between two and seven million people would die from a mild pandemic and up to 28 million would be hospitalized. He adds everything has to be put into perspective.
The WHO calculation is based on the prospect of a mild influenza outbreak, such as those which occurred in 1957 and 1968. Those pandemics killed three million people. It acknowledges that deaths could skyrocket in the event of a severe influenza pandemic, such as the one that swept the world in 1918, killing more than 40 million people.
Health experts meet in Geneva to
A.draw a map of affected area.
B.make a plan for fighting against bird flu.
C.make a combat.
D.find ways to prevent human flu.
A.Image to Map
B.Image to Image
C.Pixel Based
D.Georeferenced
Weather Map
A weather map is an important tool for geographers. A succession of three of four maps presents a continuous picture of weather changes. Weather forecasts are able to determine the speed of air masses and fronts; to determine whether an individual pressure area is deepening or becoming shallow and whether a front is increasing or decreasing in intensity. They are also able to determine whether an air mass is retaining its original characteristics or taking on those of the surface over which it is moving. Thus, a most significant function of the map is to reveal a synoptic picture of conditions in the atmosphere at a given time.
All students of geography should be able to interpret a weather map accurately. Weather maps contain an enormous amount of information about weather conditions existing at the time of observation over a large geographical area. They reveal in a few minutes what otherwise would take hours to describe. The United States weather Bureau issues information about approaching storms, floods, frosts, droughts, and all climatic conditions in general. Twice a month it issues a 30-day "outlook" which is a rough guide to weather conditions likely to occur over broad areas of the United States. These 30-day outlo6ks are based upon an analysis of the upper air levels with often Set the stage for the development of air masses, fronts, and storms.
Considerable effort is being exerted today to achieve more accurate weather predictions. With the use of electronic instruments and earth satellites, enormous gains have taken place recently in identifying and tracking storms over regions which have but few meteorological stations. Extensive experiments are also in progress for weather modification studies. But the limitations of weather modification have prevented meteorological results except in the seeding of super-cooled, upslope mountainous winds which have produced additional orographical precipitation on the windward side of mountain ranges. Nevertheless, they have provided a clearer understanding of the fundamentals of weather elements.
One characteristic of weather maps not mentioned by the author in this passage is______.
A.wind speed
B.thermal changes
C.fronts
D.barometric pressure
In Britain the weather is news. A television weather forecast often begins with an interesting fact-the town with the top temperature of the day or the place with the most rain. "The pubic like that kind of information," says senior forecaster Bill Giles. The BBC forecasters are professional meteorologists, but they do not have an easy job. They are the only presenters on television who do not use a script, and they cannot see the map that they are describing. Viewers are often critical, especially of female presenters. One woman left her job after rude letters and press reports about her clothes.
The British talk about the weather more than almost any other subject, so it is a surprise to discover that seventy per cent of television viewers cannot remember what they saw on the weather forecast. "What happens is that people like watching and hearing the forecasts, but they probably only take real notice when they need to," says one forecaster. "Or, of course, when we make mistakes!"
BBC's weather forecast is a ______ programme.
A.seldom-watched
B.little-known
C.new
D.popular
All students of geography should be able to interpret a weather map accurately. Weather maps contain an enormous amount of information about weather conditions existing over a large geographical area at the time of observation. They reveal in a few minutes what otherwise would take hours to describe. The United States Weather Bureau issues information about approaching storms, floods, frosts, droughts, and all climatic conditions in general. Twice a month it issues a 30-day "outlook" which is a rough guide to weather conditions likely to occur over broad areas of the United States. These 30-day outlooks are based upon an analysis of the upper air levels which often set the stage for the development of air masses, fronts, and storms.
Considerable effort is being exerted today to achieve more accurate weather predictions. With the use of electronic instruments and earth satellites, enormous gains have taken place recently in identifying and tracking storms over regions which have but few meteorological stations. Extensive experiments are also in progress for weather modification studies. But the limitations of weather modification have prevented meteorological results except in the Seeding of super-cooled, upslope mountainous winds which have produced additional orographical precipitation on the windward side of mountain ranges. Nevertheless, they have provided a clearer understanding of the fundamentals of weather elements.
One characteristic of weather maps not mentioned in this passage is ______.
A.wind speed
B.thermal changes
C.fronts
D.barometric pressure
val words = Array("one", "two", "two", "three", "three", "three") val wordPairsRDD = sc.parallelize(words).map(word => (word, 1)) val wordCountsWithGroup = wordPairsRDD. groupByKey().map(t => (t._1, t._2.sum)) 上述语句的执行结果wordCountsWithGroup中包含的元素是:
A、(“one”,1),(“two”,1),(“three”,1)
B、(“one”,1),(“two”,2),(“three”,1)
C、(“one”,3),(“two”,2),(“three”,1)
D、(“one”,1),(“two”,2),(“three”,3)
Our social networks can【C2】______our behaviors and moods. Political scientist James Fowler of the University of California has studied these effects and previously found that obesity, smoking, and【C3】______happiness can spread through networks of people【C4】______based on their relationships.
Fowler【C5】______his study of a network of more than 8000 7th-to 12th-grade students and their sleeping and smoking【C6】______. He and colleagues【C7】______a web of connections between each student and his or her friends. In one of these friend webs, a gang of sleepless boys【C8】______the middle of the mess, where the most【C9】______kids landed--the so-called "cool" kids. The researchers found that the【C10】______central a teen landed on the map, the greater chance that he or she got less than 7 hours of sleep per night.
Drug use was also contagious(具传染性的), the team【C11】______. Each smoking friend increased the(78 that a student used marijuana(大麻)【C13】______42%. Both sleepless and drug-use contagions could still be felt four-degrees of separation【C14】______, influencing a friend of a friend of a friend's friend.
Most surprisingly, the researchers found a link between【C15】______of sleep and drug use.【C16】______a teen's friend slept less than 7 hours, her chances of using drugs went【C17】______by 19%. And that means that【C18】______sleeplessness spreads throughout a friend【C19】______, drug use spreads as【C20】______.
【C1】
A.bicycle
B.recycle
C.circle
D.cycle
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