某功率的测量结果为5.778W,其扩展不确定度为0.24W(置信概率为95%),有效自由度为10,则该功率的完整测量结果为()。
(A)P=5.778W,U95=0.24W,νeff=10
(B)P=5.778W,U95=0.3W,νeff=10
(C)P=5.78W,U95=0.24W,νeff=10
(D)P=5.8W,U95=0.2W,νeff=10
Broadly speaking, the Englishman is a quiet, shy, and reserved person among people he knows well. Before strangers he often seems inhibited, even embarrassed. You have only to witness a railway compartment any morning or evening to see the truth. Serious-looking businessmen and women sit reading their newspapers or dozing (打盹) in a comer, and no one speaks. An English wit once suggested to overseas visitors, "On entering a railway compartment shake hands with all the passengers." Needless to say, he was not being serious. There is an unwritten but clearly understood code of behavior, which, if broken, makes the person immediately the object of suspicion,
It is well known that the English seldom show openly extremes of enthusiasm, emotion etc. Of course, an Englishman feels no less than any other nationality. Imagine a man commenting on the great beauty of a young girl A man of more emotional temperament might describe her as "a marvelous jewel", while the Englishman will flatly state "Um, she's all right." An Englishman may recommend a highly successful and enjoyable film to friends by commenting, "It's not bad." The overseas visitors must not be disappointed by this apparent lack of interest. They must realize that "all right", "not bad" are very often used with the sense of "first class", "excellent". This special use of language is particularly common in English.
One explanation for the different character of English people is that ________.
A.they are geographically isolated from the European continent
B.they have nothing to do with the other Europeans
C.they like to keep quiet among their acquaintances
D.they tend to be reserved by nature
In many countries a student would very seldom ask a question in class, for to do so would not only suggest that he is uninformed but that he is implying that the teacher has been unclear, which would be highly disrespectful. In America most teachers encourage the student to ask all kinds of questions. It is a mark of good teacher to draw out questions and a mark of a good student to ask numerous, meaningful questions. American teachers abroad thus have to realize the lack of questions or lack of recitation from their students does not mean that the teacher is being ineffective and the students are ignorant and lethargic, for they are merely being respectful.
Which continent where children are taught to be silent in front of elders is mentioned?
A.Europe.
B.North American.
C.Asia.
D.South American.
Broadly speaking, the Englishman is a quiet, shy, and reserved person among people he knows well. Before strangers he often seems inhibited, even embarrassed. You have only to witness a railway compartment any morning or evening to see the truth. Serious-looking businessmen and women sit reading their newspapers or dozing (打盹) in a corner, and no one speaks. An English wit once suggested to overseas visitors, "On entering a railway compartment shake hands with all the passengers." Needless to say, he was not being serious, There is an unwritten but clearly understood code of behavior, which, if broken, makes the person immediately the object of suspicion.
It is well known that the English seldom show openly extremes of enthusiasm, emotion etc. Of course, an Englishman feels no less than any other nationality. Imagine a man commenting on the great beauty of a young girl. Pi man of more emotional temperament might describe her as "a marvelous jewel", while the Englishman will flatly state "Um, she's all right." An Englishman may recommend a highly successful and enjoyable film to friends by commenting, "It's not bad." The overseas visitors must not be disappointed by this apparent lack of interest. They must realize that "all right", "not bad" are very often used with the sense of "first class", "excellent". This special use of language is particularly common in English.
One explanation for the different character of English people is that ______.
A.they are geographically isolated from the European continent
B.they have nothing to do with the other Europeans
C.they like to keep quiet among their acquaintances
D.they tend to be reserved by nature
The author's main purpose in writing this passage is to ______ .
A.discuss the negative effects of patenting genes
B.face possible moral consequences of patenting genes
C.condemn the selfishness of researchers who patent genes
D.weigh the advantages and disadvantages of patenting genes
What is the main idea of this passage?
A.The contribution of Louise Hay
B.How to make an effective treatment for doctors
C.Keep healthy with a high spirit
D.The connection between emotions and health
According to the passage, which of the following statements is tree?
A.Punishment is an effective method of stopping cheating.
B.A change in the educational system will eliminate the need to cheat.
C.Students do not cheat on essay tests.
D.The problem of student cheating has its roots in deeper problems.
2. Until a hundred years ago, most journeys were in the 20 km range, the distance conveniently accessible by horse. Heavy freight could only be carried by water or rail. The invention of the motor vehicle brought personal mobility to the masses and made rapid freight delivery possible over a much wider area. Today 90 per cent of inland freight in the United Kingdom is carried by road. Clearly the world cannot revert to the horse-drawn wagon. Can it avoid being locked into congested and pollution ways of transporting people and goods?
3. In Europe most cities are still designed for the old modes of transport. Adaptation to the motor car has involved adding ring roads, one-way systems and parking lots. In the United States, more land is assigned to car use than to housing. Urban sprawl means that life without a car is nest to impossible. Mass use of motor vehicles has also killed or injured millions of people. Other social effects have been blamed on the car such as alienation and aggressive human behaviour.
4. A 1993 study by the European Federation for Transport and Environment found that car transport is seven times as costly as rail travel in terms of he external social costs it entails such as congestion, accidents, pollution, loss of cropland and natural habitats, depletion of oil resources, and so on. Yet cars easily surpass trains or buses as a flexible and convenient mode of personal transport. It is unrealistic to expect people to give up private cars in favour of mass transit.
5. Technical solutions can reduce the pollution problem and increase the fuel efficiency of engines. But fuel consumption and exhaust emissions depend on which cars are preferred by customers and how they are driven. Many people buy larger cars than they need for daily purposes or waste fuel by driving aggressively. Besides, global car use is increasing at a faster rate than the improvement in emissions and fuel efficiency which technology is now making possible.
6. A more likely scenario seems to be a combination of mass transit systems for travel into and around cities. With small "low emission" cars for urban use and larger hybrid or lean burn cars for use elsewhere. Electronically tolled highways might be used to ensure that drivers pay charges geared to actual road use. Better integration of transport systems is also highly desirable-and made more feasible by modern computers. But these are solutions for countries which can afford them. In most developing countries, old cars and old technologies continue to predominate.
Paragraph 3 ______
A. How Driving Habits Contribute to Road ProblemsB. The Increasing Use of Motor VehiclesC. The Impact of the Car on City DevelopmentD. The Relative Merits of Cars and Public TransportE. The Writer&39;s Own Prediction of Future SolutionsF. A Comparison of Past and Present Transportation Methods.
Paragraph 4 ______
A. How Driving Habits Contribute to Road ProblemsB. The Increasing Use of Motor VehiclesC. The Impact of the Car on City DevelopmentD. The Relative Merits of Cars and Public TransportE. The Writer&39;s Own Prediction of Future SolutionsF. A Comparison of Past and Present Transportation Methods.
Paragraph 5 ______
A. How Driving Habits Contribute to Road ProblemsB. The Increasing Use of Motor VehiclesC. The Impact of the Car on City DevelopmentD. The Relative Merits of Cars and Public TransportE. The Writer&39;s Own Prediction of Future SolutionsF. A Comparison of Past and Present Transportation Methods.
Paragraph 6 ______
A. How Driving Habits Contribute to Road ProblemsB. The Increasing Use of Motor VehiclesC. The Impact of the Car on City DevelopmentD. The Relative Merits of Cars and Public TransportE. The Writer&39;s Own Prediction of Future SolutionsF. A Comparison of Past and Present Transportation Methods.
Transport by horse would not be ______
A. for motor vehiclesB. a useful alternative to motor vehiclesC. a long-term solutionD. the problem of vehicle pollutionE. carrie by water in the United KingdomF. a factor in the pollution problem.
Most European cities were no designed ______
A. for motor vehiclesB. a useful alternative to motor vehiclesC. a long-term solutionD. the problem of vehicle pollutionE. carrie by water in the United KingdomF. a factor in the pollution problem.
Technology alone can not solve ______
A. for motor vehiclesB. a useful alternative to motor vehiclesC. a long-term solutionD. the problem of vehicle pollutionE. carrie by water in the United KingdomF. a factor in the pollution problem.
People&39;s choice of car and attitude to driving is ______
A. for motor vehiclesB. a useful alternative to motor vehiclesC. a long-term solutionD. the problem of vehicle pollutionE. carrie by water in the United KingdomF. a factor in the pollution problem.
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Which of the following is TRUE according to the passage?
A.When a patent becomes out of effect, it can be repatented or extended if necessary.
B.It is necessary for an inventor to apply for a patent before he makes his invention public.
C.A patent holder must publicize the details of his invention when its legal period is over.
D.One can get all the details of a patented invention from a library attached to the patent office.