What is the passage mainly about?A． The universal value of the world heritage in LiverpoolB． The exciting experience of the author in LiverpoolC． The special cultural atmosphere of LiverpoolD． The beautiful historic sites of Liverpool
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What is special about the battery?A． It is built in an iPhone.B． It is the smallest of its kind.C． It can also be used as a charger.D． It keeps power for about 30 days.
A startup company in California is using machine learning and arificial itelligence to advise fire departments about how to plan for earthquakes and respond to them. The company hopes its algorithms can take a lot of the guesswork out of the planning process for disaster response by making accurate predictions about earthquake damage. I's one of a handful of companies rolling out atificial itelligence and machine learning systems that could help predict and respond to foods, cyber-attacks and other large- scale disasters. Nicole Hu, the company's chief technology oflicer, says the key is to feed the computers three mam categories of data. The first is data about homes and other buildings, such as what materials they're made of, when they were built and how likely they are to collapse when the ground starts shaking. The next category is data about the natural environments. For example. "What is the soil like" What is the elevation like? What is the general humidity like?" explains Hu. The third thing we look at is live instant data." she says, such as the magnitude of the quake, the trafic in the area of the quake and the weather at the time of the quake. The computer uses the information to make predictions about what would happen if an earthquake occurred in a particular area. It then uses data from past earthquakes to see whether its predictions are any good, and revises its predictive models accordingly. In other words, it learns as it gocs, which is basically how machine learning works. Stanford University earthquake engineer Gregory Deierlein consulted for the company. He says one of the most remarkable things about the company's software is its ability to incorporate data from an earthquake as its happening. and to adjust its predictions in real time. "Those sort of things used to be research projects." says Deierlein " After an event, we would collee data and a few years later we' d produce new models." Now the new models appear in a matter of minutes. He note the company's exact methods are opaque. "Like many startup companies they're not fully transparent in everything they're doing." He says.“I mean, that's their proprietary knowledge that they're proprietary knowledge that they're bringing to it."Nonetheless, some first responders are already convinced the software will be useful. Fire chief Dan Ghiorso leads the Woodside Fire Protection District near San Francisco, which covers 32 square miles. The San Andrea's fault is only a couple hundred feet behind the firehouse. Ghiorso says in the past, when an earthquake hit, he 'd have to make educated guesses about what parts of his district might have suffered the most damage, and then drive to each place to make a visual inspection. He hopes the company' s software will change that, although he has yet to put it to the test during an actual quake." Instead of driving thity two square miles, in fifteen minutes on a computer Ican get a good idea of the concerns." he says,“instead of me, taking my educated guess, they re putting science behind it, so I' m very confident." Unfortunately, it's going to take a natural disaster to see if his confidence is justified. What is NOT needed for training the earthquake predicting software?A Data about past earthquakes B. Data about human impacts C. Data about the geographic conditions D. Data about the buildings
共用题干 Coming Soon to a Theater Near You!What are special effects?Do you enjoy movies that use a lot of special effects Dinosaurs（恐 龙）from the distant past!Space battles from the distant future!There has been a revolution in special effects,and it has transformed the movies we see.The revolution began in the mid 1970s with George Lucas's Star Wars,a film that stunned （使震惊）audiences. That revolution continues to the present,with dramatic changes in special-effects technology.The company behind these changes is Lucas's Industrial Light&Magic (ILM).And the man behind the company is Dennis Muren,who has worked with Lucas since Star Wars.Muren's interest in special effects began very early.At the age of 6,he was photographing toy dinosaurs and spaceships.At10,he had an 8 millimeter movie camera and was making these things move through stop-motion.(Stop-motion is a process in which objects are shot with a camera,moved slightly,shot again,and so on .When the shots are put together,the objects appear to move.)Talk to Muren and you'll understand what ILM is all about:taking on new challenges.By 1989,Muren decided he had pushed the old technology as far as it would go.He saw computer graphics（图像）( CG ) technology as the wave of the future and took a year off to master it.With CG technology,images can be scanned into a computer for processing,for example, and many separate shots can be combined into a single image.CG technology has now reached the point,Muren says,where special effects can be used to do just about anything so that movies can tell stories better than ever before. The huge success of Jurassic Park and its sequel（续集）,The Lost World,the stars of which were computer-generated dinosaurs,suggests that this may very well be true. Today's film makers emphasize special effects at the expense of the story.A: RightB:WrongC: Not mentioned
The keyboard of a typewriter refers to the set of keys in it.Most typewriters have"qwerty"key-boards.The name crones from the first six letters on the board′s second line.The"qwerty"board was?set up by C.L.Sholes,who was the first man to make a really good typewriter. Some letters,such as S and T,are used together a great deal in English.Sholes placed such?pairs of letter far apart on his keyboard.This made it harder for typists to learn the keyboard.But it?helped keep typewriters from jamming.On early machines the bars holding the letters often caught on?each other when moving quickly. Sholes made the name of his machine easy to type.lie placed on the same line all the letters of?the word"type"and"writer".This article is mostly about a__________.A.pair of letters B.keyboard C.language D.man's life
The keyboard of a typewriter refers to the set of keys in it.Most typewriters have"qwerty"key-boards.The name crones from the first six letters on the board′s second line.The"qwerty"board was?set up by C.L.Sholes,who was the first man to make a really good typewriter. Some letters,such as S and T,are used together a great deal in English.Sholes placed such?pairs of letter far apart on his keyboard.This made it harder for typists to learn the keyboard.But it?helped keep typewriters from jamming.On early machines the bars holding the letters often caught on?each other when moving quickly. Sholes made the name of his machine easy to type.lie placed on the same line all the letters of?the word"type"and"writer".The"qwerty"board is named for the__________.A.man who set it up B.company that sold it C.order of six of its letters D.letters used the most in English
What is computer- vision researchers’main concern of iPhone X’s FaceID？( ) A.They have concerns of the security and convenience of FacelD.B.They don’t believe iPhone X’s FaceID can successfully unlock a phone every time.C.They have doubts of its technique to overcome variable lighting and subtle change of the user’s face.D.They are mainly worried about the smartphone’s accuracy.
