A reciprocating air compressor is running roughly and vibrating excessively, indicating that the()。A. compressor is overloadedB. motor is overloadedC. foundation bolts are looseD. belts are too tight
In a two-stroke/cycle diesel engine, the camshaft rotates at_. ()A. twice the crankshaft speedB. half the crankshaft speedC. the same speed as the crankshaftD. a speed independent of the crankshaft
Soft robots， which can move around the ocean without harming sea life， are ideal for underwater exploration. However， they are not so welcome in robot market because they are extremely slow and have a hard time operating through the water. But that may change soon thanks to a self-driven soft robot created by researchers at the University of California， San Diego. The recently-developed robot， which resembles a paper lantern， was primarily built using soft materials. Its flexible ribs are attached to a circular plate at both ends. An adjustable nozzle（喷嘴）fitted on one side helps draw in and jet （射出） water each time the robot shrinks. The resulting jets of water enable it to swim forward， similar to a squid （乌贼）. A plate holds a waterproof component that can house a camera to record data， which is of great value to further development of the robot. It also has its own power source， allowing it to float autonomously for long periods of time. "Essentially，we recreated all the key features that squids use for high-speed swimming. This is the first robot that can achieve these jets of water by changing its body shape，which improves swimming efficiency，" said Professor Michael T. Though the squid robot has not been tested in open waters，it successfully swam around coral and fish in a large tank in the UC San Diego Birch Aquarium. What's more， the robot clocked an impressive speed of 18 to 32 centimeters per second， or about half a mile per hour. Though nowhere close to real squids， it is faster than most other soft robots. "After we were able to improve the design of the robot so that it would swim in a tank in the lab，it was especially exciting to see that the robot was able to successfully swim in a large tank among coral and fish， showing its possibility for real-world applications，" said Caleb Christianson，who led the study as part of his Ph. D paper.（1）Why were the previous soft robots seldom used？ ____ A. Their application places are limited.B. They do great damage to sea life.C. They are very difficult to control.D. Their advertising effect is hot good.（2）What's the similarity between the newly-developed robot and squids？ ____ A. Their body material.B. Their general speed.C. Their power source.D. Their swimming pattern.（3）What can we learn about the squid robot according to Paragraph 3？ ____ A. It is the first robot that can transform.B. It will function well in open waters.C. It has every feature that a squid has.D. It can defeat most other soft robots in speed.（4）What's Caleb Christianson's attitude towards the newly-developed robot？ ____ A. Positive.B. Critical.C. Uncaring.D. Doubtful.
(单选题) I've got the job! _A. Not bad.B. I'm glad that you made it.C. It sounds goodD. You'd better tell your brother.
4、Every week, I write an email and tell my parents ________ that happened in our school.A. exciting somethingB. something excitingC. excited somethingD. something excited
As the amount of moisture in the air increases, the difference between the dry bulb and wet bulb temperatures will ______.A. increaseB. decreaseC. remain unchangedD. be greatest at dew point
The World Health Organization gave a warning to the public without any ________ when the virus of H1N1 hit Mexico in April,.A. delayB. effortC. scheduleD. consideration
In Britain people usually have a doctor near their home or in their town. This is the local doctor. You have to register with a doctor before you can make an appointment. You usually have to fill in a form. and the doctor examines you. Families often all register with the same doctor. Doctors often work together in groups, and the name of the place where they work is a Doctor"s Surgery. The government pays for this system, and it is free to go to see your doctor. If the doctor decides that you need treatment he can prescribe medicine. For example he can prescribe antibiotics for an infection. Medicine can be tablets to take with water or liquid to drink. The doctor writes the prescription. You take the prescription to the chemist"s, and the chemist will make up the medicine for you. You usually have to pay some money for the medicine --- but you don"t have to pay the full price.(1). British people usually go a long way to see a doctor.A、 Right.B、Wrong.C、Doesn"t say.(2). Some rich British families don"t register with the same doctor.A、 Right.B、Wrong.C、Doesn"t way.(3). British people don"t have to pay when they see their doctor.A、 Right.B、Wrong.C、Doesn"t say.(4). Doctors always work alone in their own Doctor"s Surgery.A、 Right.B、Wrong.C、Doesn"t say.(5). British people usually have to pay for their prescription at the chemist"s.A、 Right.B、Wrong.C、Doesn"t say.
Sluggish response or action of the hydraulic actuators may be a result of _____.A. insufficient loadB. excessively high oil viscosityC. relief-valve pressure setting too highD. reservoir level being maintained two inches above normal
_Japan and _United States are separated by _Pacific Ocean.A. the, the, theB. /,/, theC. /, the, /D. /, the, the
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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.
选择合适的单词补全句子。-|||-I __ in the city.-|||-live lives
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
Elder and weaker Mr. Mag paid_visits to his old friends.A. scarceB. rare()C. insufficientD. inadequate
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 ; 单词提示中根小短线代表一个 字母 ) A va---- is a space that contains no air or other gas.
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
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.
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
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
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.
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).
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.