[单选] Two important considerations for the proper lubrication of a diesel engine include the delivery of the oil in sufficient amount and the （）。A. cetane numberB. pour pointC. viscosity temperatureD. quality of the oil
The cetane number of a diesel fuel oil indicates its ______.A. ignition qualityB. acid contentC. heating valueD. viscosity
语篇类型:说明文 主题语境:人与社会-历史,社会与文化 词数:205 核心素养:文化意识-|||-2020年7月)江卷]Some time after 10000 BC,people made the first real attempt to control the world they-|||-lived 1 through agriculture.Over thousands of years,they began to depend less on 2 could-|||-be hunted or gathered from the wild,and more on animals they had raised and crops they had sown.-|||-Farming produced more food per person 3 hunting and gathering,so people were able to raise-|||-more children. And,as more children were born,more food 4 (need),Agriculture gave people their-|||-first experience of the power of technology 5 (change) lives.-|||-By about 6000 BC,people 6 (discover)the best crops to grow and animals to raise,Later,they-|||-learned to work with the 7 (season),planting at the right time and,in dry areas, 8 (make)-|||-use of annual floods to irrigate(灌溉)their fields.-|||-This style of farming lasted for quite a long time.Then,with 9 rise of science,changes began.-|||-New methods 10 mean)that fewer people worked in farming.In the last century or so,these-|||-changes have accelerated New power machinery and artificial fertilizer化肥)have now totally transformed a-|||-way of life that started in the Stone Age.-|||-1.__ 2. __ 3.__ 4.__ 5.__ -|||-6. __ 7. __ 8. __ 9. __ 10. __
The heat picked up by these cooling fluids is transferred to _ in heat exchangers and thus rejected to the sea. ()A. oilB. sea waterC. waterD. fresh water
（单选题，5分）I don't like the ___ of the furniture in this room.A. wayB. stayingC. complimentD. arrangement
阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。 In ancient China lived an artist 1 paintings were almost lifelike. The artist's reputation had made him proud. One day the emperor wanted to get his portrait(画像) done so he called all the great artists to come and present their 2 (fine) work, so that he could choose the best. The artist was sure he would 3 (choose) , but when he presented his masterpiece to the emperor's chief minister, the old man laughed. The wise old man told him to travel to the Li River ——perhaps he could learn a little from the greatest artist in the world. Filled with 4 (curious), the artist packed his bags and left. 5 he asked the villagers on the banks of the river where he could find the legendary( 传奇的) artist, they smiled and 6 (point) down the river. The next morning he hired a boat and set out 7 (find) the well-known painter. As the small boat moved 8 ( gentle) along the river he was left speechless by the mountains being silently reflected in the water. He passed milky white waterfalls and mountains in many shades of blue. And when he saw the mists rising from the river and the soft clouds 9 (surround) the mountain tops, he was reduced to tears. The artist was finally humbled (谦卑) by the greatest artist 10 earth, Mother Nature.
Next, _______ through busy street and see what everyone else is doing. A expensive B admission C setting D wander E safe F sights G demonstration H certainly I welcoming J confidently
The world has many beautiful sounds. We can hear the songs of birds and laugh of people. We can listen to cool music and news reports. And all this is due to（归功于） our ears! They bring us a world of sounds. But some people can't hear any sound at all. Some are born deaf. Others can hear well in their childhood， but too many loud sounds hurt their ears later on. In China， 6 children out of 1000 have hearing problems when they are born. They can not hear ordinary sounds clearly. Children who have hearing problems usually also have learning problems at school. A lot of things can cause hearing problems. For example， too much earwax is not good for our hearing and noise louder than 85 decibels（[ˈdesɪbel]分贝） can hurt our ears and make us lose our hearing for a short time or even forever. Hearing is a problem for all of us. So we should do our best to give our ears special care. Don't forget the following： Try to stay away from places with too much noise. If you have to go， wear earplugs（耳塞）. A pair of earplugs can cut the noise by 30 decibels. When swimming， remember to put earplugs into your ears to stop water from getting in. Never put anything sharp into your ears. If you think you have too much earwax， ask your parents to help you clean it out. Keep these things in mind! Then you won't ask "WHAT？" when you are older.（1）In the first paragraph， the writer wants to ____ .A. tell us many beautiful sounds.B. describe the sounds.C. teach us how to use ears.D. show the importance of ears（2）The word earwax means ____ in Chinese.A. 耳膜B. 耳鸣C. 耳垢D. 耳疾（3）Hearing problems may be caused by ____ .A. a little earwaxB. learning problems at schoolC. noise louder than 85 decibelsD. earplugs that can only cut noise by 15 decibels（4）Which of the following is not mentioned in the passage？ ____ A. Hearing problems caused by diseases.B. People with hearing problems.C. Ways to protect our ears.D. Danger of loud noise
A piston in a four-stroke/cycle diesel engine makes four strokes during each( ).A. crankshaft revolutionB. mechanical cycle of operationC. period of two combustion cyclesD. cycle of twoE. vents
During ______ fuel is injected and burnt.A. the suction strokeB. the power strokeC. the exhaust stroke
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These drugs are available over-the-counter without a(n)__________. （）A. infectionB. dosageC. prescription
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.
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
The coming of the railways in the 1830s ________ our society and economic life.A. transferredB. transformedC. transportedD. transmitted
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.
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.
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
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 ) To enh ---- something means to improve its value, quality, or attractiveness.
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
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） Someone or something that is so---- is very serious rather than cheerful or humorous.
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 ; 单词提示中根小短线代表一个 字母 ) A va---- is a space that contains no air or other gas.
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.
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.