Questions 51 to 55 are based on the following passage-|||-Google researchers have used artificial intellige (AI) to teach robots how to move like real animals in this case,-|||-dogs).They descnibe their experiment in a blog released this week-|||-"First,we describe how robots can learn to move like a real animal by imitating their motions, producing fast and fluent-|||-movements like running slowly and hopping Then,we discuss a system for automating the training of moving skills in the-|||-real world, which allows robots to learn to walk on their own,with minimal human assistance,"shared in the blog Xue Bin-|||-(Jason) Peng,Student Researcher and Schoon Ha,Research Scientist,Robotics at Google-|||-They achieved this impressive feat by using something called reinforcement learning (R They began by taking a-|||-reference video recorded from an animal and using RL to get the robot to imitate an animal`s movement-|||-"By providing the system with different reference motions,we are able to train an animal shaped robot to perform a-|||-diverse set of agile behaviors, ranging from fast w walking to dynamie hops and turns,The policies are trained primarily in-|||-simulation(模拟,模仿),and then transferred to the real world using a space adaptation technique that can efficiently adapt-|||-a policy using only a few minutes of data from the real robot,"wrote the researchers in their blog.-|||-However, it is a well-known fact that simulators provide a poor approximation of the real world,meaning that-|||-simulations don`t perform well in reality.This is where the researchers decided to use a sample-efficicnt space adaptation-|||-technique-|||-They did so by introducing an element of randomness to the physical parameters(参数)used in the simulation by varying-|||-physical quantities, such as the robot`s mass and friction This resulted in a machine learning model that could account for all-|||-kinds of small changes and the complications they create-|||-The end result is a robot that moves like a real dog.This kind of work is crucial as it can open opportunities to use robots-|||-to do sophisticated tasks in the real world.-|||-51.What is Google rescarchers`experi about?-|||-A)Developing the first AI dog like robot-|||-B) Training robots to move like a real dog.-|||-C)Making a running dog video with Al tech.-|||-D) Designing a new AI device to make robots.-|||-52.How did the researchers make the breakthrough?-|||-A) By using bionic technology-|||-B) By using 3-D printing tech-|||-C) By employi ing the method of RL-|||-D) By upplying the 5G technology-|||-53.Why did rescarchers decide to use a sample efficient space adaptatio technique?-|||-A) Because they hated to experiment on animals.-|||-B) Because they intended to reduce research cost-|||-C) Because the robotic technology was unable to update.-|||-D) Because simulators don`t simulate the real world well.-|||-54.What have researchers taken into account to simulate the reality?-|||-A) The mass and friction of f the robot.-|||-B)The color and sound of the robot.-|||-C) The light and the space of the lab-|||-D) The competence of the operator.-|||-55.Why is the new technology Google developed so important?-|||-A) Because it has shed new light on cloning technology,-|||-B) Because it has opened chances for us to control robots-|||-C) Because it can promote the application of robotic technology.-|||-D) Because it can enable robots to do more tasks in the laboratory.
1-0. ____A. Genes of most species can be permanently modified.B. NAS supports continued research on the gene control.C. NAS has proved that gene modification is basically safe.D. Scientists can remove the Zika virus from mosquitoes.
Which of the following tips is not given by the speaker?A. Be with your friend during hard times.B. Stop your friend from making mistakes.C. Tell your secret to your friend.D. Accept that no friendship is perfect.
people came to feel that they had a right to new and better products.A. 人们逐渐认识到他们有权享用更好的新服务。B. 孩子们逐渐认识到他们有权享用更好的新商品。C. 人们逐渐认识到他们有权享用更好的新商品。D. 人们逐渐认识到他们不知道如何用新商品。
Jendry offered Colo some peanuts, only to______ with a blank stare.A. meetB. meetingC. be metD. met
I was born in a poor community on the north side of Boston, US, raised by a single mother who didn’t finish 3rd grade, lived each day on food stamps and attended what the media called “the most dysfunctional (功能失常的) public school district”. Not many people expected much of me, so I had to expect something of myself. On my 13th birthday, I bought a poster of Harvard to hang in my room. Being at Harvard became what dreamt about. Even when my electricity was cut off and I woke up at 5:30 am to pitch blackness, I knew that my poster of Harvard was still hanging only two feet away from me. Reminding myself of my goal each day made it easy to say no to the same choices I saw my peers making, because those paths wouldn’t have gotten me closer to my goal. Even poverty (贫穷 ) could not take away my power to decide what I choose to do with my day. The poster gave me the courage to cold email about 50 Harvard students so I could ask for feedback on my application essays; it gave me the energy to study just one more hour on my SATs when my friends were asleep; and it gave me the determination to submit just one more scholarship application when 180 others had already turned me down. Every day I could feel myself getting closer and closer to my goal as my writing got better, my SAT score increased, and my scholarship checks started coming in. Finally, an email arrived from Harvard. The first word was “Congratulations!”. A month later, Harvard flew me up to visit the campus where for the first time I stepped onto my dreaming land. Who you are today is the result of the decisions you made yesterday, and who you will be tomorrow will be the result of the choices you make today. Who do you want to be tomorrow?【小题1】What can we learn about the author from the first paragraph?A.He experienced disability.B.He grew up in a happy family.C.He accepted special education.D.He had high expectation of himself.【小题2】What efforts did the author make to achieve his goal?A.He often wrote feedbacks on others’ essays.B.He spent more time preparing for the exams.C.He learnt from his peers from time to time.D.He consulted his teacher when having problems.【小题3】Which can best describe the author’s character?A.Intelligent and humorous.B.Courageous and friendly.C.Determined and hardworking.D.Generous and selfless.【小题4】Which of the following can be the main idea of the text?A.Perseverance can make your dream come true.B.Explanation of “Failure is the mother of success”.C.The longest journey begins with the first step.D.Hardship serves as a textbook of life.
which of the follow parasite can cause serious damage of brain?A. Angiostrongylus cantonensisB. filariaC. Enterobious vermicularisD. Spirometra mansoniE. Entamoeba histolytica
Mr. Craig agreed to ______ him with a pay of slightly over the minimum wage and two weeks' paid holiday a year.A. admireB. inspireC. fireD. hire
21. The competition from experienced staff members,some of whom are higher in rank,_____ to my disadvantage.A. worksB. workingC. workD. to work
4 单选 (2分) He gave great encouragement to his students, especially if their passions happened to _______ his own.A. compete withB. coincide withC. confront withD. compare with
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拼写合适的单词补全句子(答案不区分大小写;单词提提示中一根小短线代表一个字母)Something that is inf- - - - - has no limit,end,or edge.
拼写合适的单词补全句子 ( 答案不区分大小写 ; 单词提示中一根小短线代表一个 字母 ) To enh ---- something means to improve its value, quality, or attractiveness.
These drugs are available over-the-counter without a(n)__________. ()A. infectionB. dosageC. prescription
The coming of the railways in the 1830s ________ our society and economic life.A. transferredB. transformedC. transportedD. transmitted
ⅢComplete the following sentences with the given sentence structures-|||-get ready for.sa为························备-|||-e.g.Susan has to buy a lot of things to get ready for her trip.(苏珊不得不买很多东西为旅行做准备。)-|||-1 The boy got up early to __ (为上学做准备).-|||-2 I have a lot of work to do to __ (为明天做准备).
拼写合适的单词补全句子(答案不区分大小写;单词提示中一根小短线代表一个字母) Someone or something that is so---- is very serious rather than cheerful or humorous.
question or statement.Hot pot is a traditional dish in China. It is believed to date back more than 1,000 years to the time of the Jin Dynasty. Hot pot's origins can be found in the dining practices of Mongolian horsemen who rode across the steppe and into northern China. Legend has it that the Mongols used their helmets as pots to simmer (炖) broth (汤底) over open fires, and cooked chunks of meat in the broth.Hot pot cooking seems to have spread to northern China during the Tang Dynasty. In the regional variations developed with different ingredients such as seafood. In the centuries that witnessed the growth of the Song Dynasty, hot pot moved — and changed — further south, with each successive region adapting it to their local ingredients and tastes.The ingredients in a hot pot vary a lot from region to region. Perhaps the most famous hot pot is the Chongqing or Sichuan hot pot. It features a dark red broth chock-full (塞满了的) of spices, chili peppers, and the uniquely mouth-numbing Sichuan peppers. In Beijing and elsewhere in the north, hot pot broth tends to be mild and, compared to its racy southern "cousins", a little light. In the northeast of China, a kind of local sauerkraut (酸菜) is used to add some tang (强烈的味道), making the broth a bit sour. People can choose a version of hot pot according to their taste.1 Hot pot is believed to date back more than 1,000 years to the time of _______.A. the Jin Dynasty B. the Tang DynastyC. the Song Dynasty D. the Yuan Dynasty
Elder and weaker Mr. Mag paid_visits to his old friends.A. scarceB. rare()C. insufficientD. inadequate
拼写合适的单词补全句子 ( 答案不区分大小写 ; 单词提示中根小短线代表一个 字母 ) A va---- is a space that contains no air or other gas.
If you_________in a job for several years, you may be able to accumulate a lot of work experience and skills that would be beneficial to your future career development.A. have workedB. had workedC. have been workingD. had been working
拼写合适的单词补全句子 ( 答案不区分大小写 ; 单词提示中一根小短线代表一个 字母 ) To aut _ _ _ _ _ a factory , office , or industrial process means to put in machines which can do the work instead of people.
选择合适的单词补全句子
一、拼写合适的单词补全句子(答案不区分大小写;单词提示中一根小短线代表一个字母) If someone is __ob---__ , they are extremely fat.
拼写合适的单词补全句子 ( 答案不区分大小写 ; 单词提示中一根小短线代表一个字母 ) A seq----- of events or things is a number of events or things that come one after another in a particular order.
The Harry Potter series, written by J.K. Rowling, is perhaps the most popular set of novels of the modern era. With seven books and many successful films to its name, the series has gathered about 15 billion dollars in sales. How did the series become so popular? The reason can be broken down into several areas.The first book in the series was rejected 12 times before it was picked up by Bloomsbury—a small publisher in England. So receiving this contract was Rowling's first step to success. However, getting a book contract does not ensure the success of a book. The story was soon loved by children and adults alike. In light of this, Bloomsbury Publishing published a second version of the books with “adult” (less colorful and more boring) book covers. This made it easier for a full range of ages to enjoy the series.Another factor that worked like a charm was that the publisher and Rowling herself, through the books, conducted midnight releases, promotions, and pre-ordering more readers. Customers who feared that their local bookstore would run out of copies responded by pre-ordering over 700,000 copies before the July 8, 2000 release.What does the underlined word “releases” (Para. 3) mean?A. The activity that frees or expresses energy or emotion.B. The announcement about the book’s publishing information.C. The sales of books that is available only at midnight.
The increase in international business and in foreign investment has created a need for executives with knowledge of foreign languages and skills in cross-cultural communication. Americans, however, have not been well trained in either area and, consequently, have not enjoyed the same level of success in negotiation in an international arena as have their foreign counterparts. Negotiating is the process of communicating back and forth for the purpose of reaching an agreement. It involves persuasion and compromise, but in order to participate in either one, the negotiators must understand the ways in which people are persuaded and how compromise is reached within the culture of the negotiation. In many international business negotiations abroad, Americans are perceived as wealthy and impersonal. It often appears to the foreign negotiator that the American represents a large multi-million-dollar corporation that can afford to pay the price without bargaining further. The American negotiator’s role becomes that of an impersonal supplier of information and cash. In studies of American negotiators abroad, several traits have been identified that may serve to confirm this stereotypical perception, while undermining the negotiator’s position. Two traits in particular that cause cross-cultural misunderstanding are directness and impatience on the part of the American negotiator. Furthermore, American negotiators often insist on realizing short-term goals. Foreign negotiators, on the other hand, may value the relationship established between negotiators and may be willing to invest time in it for long-term benefits. In order to solidify the relationship, they may opt for indirect interactions without regard for the time involved in getting to know the other negotiator. Clearly, perceptions and differences in values affect the outcomes of negotiations and the success of negotiators. For Americans to play a more effective role in international business negotiations, they must put forth more effort to improve cross-cultural understanding. [共5题](1)What kind of manager is needed in present international business and foreign investment? [本题2分]A. The man who represents a large multi-million-dollar corporation. B. The man with knowledge of foreign languages and skills in cross-cultural communication. C. The man who is wealthy and impersonal. D. The man who can negotiate with his foreign counterparts.
选择合适的单词补全句子。-|||-I __ in the city.-|||-live lives
拼写合适的单词补全句子 ( 答案不区分大小写 ; 单词提示中一根小短线代表一个 字母 ) If there is a bo-- in the economy, there is an increase in economic activity.
6. The children will now play some pieces of music that they ______ themselves. A.were taught posed C.accomplished D.worked7. While she waited,she tried to ______ her mind with pleasant thoughts of the vacation. A.occupy pose C.think D.intensify8. In the film,the peaceful life of a monk ______ the violent life of a murderer. A.is compared with B.is compared to C.is contrasted to D.is contrasted with9. ______ to pay for an order is simplicity itself. A.Use plastic B.Using plastics C.Using plastic D.Used plastic10. Additional time is required for cooking or ______ homemade dishes. A.chill B.to chill C.chilled D.chilling