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《中学科技》2013,(1):33-33
Find a number consisting of 9 digits in which each of the digits from 1 to 9 appears only once. This number should satisfy the following requirements：
a. The number should be divisible by 9.
b. If the most right digit is removed, the remainingnumber should be divisible by 8. 相似文献
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《时代数学学习》2002,(11)
1. Tom is driving a jeep at a constant speed of 55 MPH. A sports car one-half miles behind Tom is moving at a constant speed, it passes Tom in 60 seconds. How many miles per hour is the speed of the sports car? 2. What is the value of the sum 2~(-1)+2~(-2)+2~(-3)+…+2~(-9)+2~(-10)? Express your answer as a common fraction. 3. The average of twelve different positive integers is 12. What is the greatest possible value of any one of these numbers? 相似文献
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《英语自学》1999,(7)
1.Directions:Revise the following sentences aocording to the requirement.Writeyour version in the corresponding space on your answer sheet.15%1.John Milton is one of his favorite poets.(periodic sentence)2.Steve approached the dean's office.He walked at a slow pace.(simple sentencewith-ing phrase)3.After she was introduced by her assistant,the mayor began with an openingstatement.(simple sentence with-ed phrase) 相似文献
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In the history of humanity,there are so many great thinkers contributing a lot to our lives.In education area,thinkers in both eastern and western countries left so many master pieces to later generation.Are there any difference between their ideas of learning? What makes the differences between Chinese learner and those from western countries? In this paper,I will try to explain these by compare the views of epistemology from Locke and Confucius.From that we may find the answer. 相似文献
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胡晓华 《课程教材教学研究(小教研究)》2013,(Z1):57-58
<正>〔教学目标〕1.Enable the students to learn the four skill sentences by heart:What is it doing?It’s eating bananas.What is she doing?She’s jumping.2.Enable the students to use the sentences to ask and answer questions.3.Help the students to understand the sentences:The elephant is drinking water with its trunk.〔教学重点〕1.Enable the students to learn the four skill 相似文献
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How to deal with the relations between roles and actors is the core question of the performance,and there are two opposite performance theories to this question:"Expressionism"and "Experimentalism".Can these two different performance styles coexist harmoniously? The film Happy Together directed by Karwai Wong has provided a very good answer. 相似文献
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吴道国 《中学英语园地(高三版)》2006,(Z1)
完成下列反意疑问句。 1.She is a teacher, ? 2.W e aren tin Class 3, ? 3.They are good atE nglish, ? 4.This is a book, ? 5.These are cars, ? 6.Everyone is here, ? 7.N obody could answer the question, ? 8.N one of the students know it, ? 9.Tom got nothing from M ike, ? 0.N obody is able to answer your question, ? 1.Everything is ready, ? 2.She said nothing atthe m eeting, ? 3.N othing was right, ? 4.Everyone know s the teacher, ? 5.G o to the cinem a now , ? 6.Lets go hom e, ? 7.Let us go, … 相似文献
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Lucy Suzume Q. 《海外英语》2005,(5)
Where can we go, if we're lost in the air? What can we find, if there' s nothing there? Who can we talk to,if we're surrounded by hate? When can we walk freely up to that Golden Gate? The answer, my friend, is not to go high, Nor to go across. No, the answer,my friend,is buried deep down. 相似文献
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《湖北广播电视大学学报》1996,(11)
一、MULTIPLE CHOICE(20题,每题1分,共20分)1.I'm expecting__an answer to my letter.a.to b. for c.of d. —2.Mary didn't pass her exam.We agree it was__.a.rather difficult b.too easyc.same rather d.very different3.We are trying to__the meeting__this afternoon.a.reschedule,for b.reschedule,toc.reschedule,in d.rescheduling,for4.Which of the letters__in our advertisement?a.we should use b.should use wec.should we use d.we use5.The components are being sent to Sydney by air andthey'll__from the airport by our agent. 相似文献
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A new method for identifying nonlinear time-vaying systems with unknown structure is presented,The method extends the application ar5ea of basis sequence identification.The essential idea is to utilize the learning and nonlinear approximating ability of neural networks to model the non-linearity of the system,characterize time-varying dynamics of the system by the time-varying parametric vector of the network ,then the parametric vector of the network is approximated by a weighted sum of known basis sequences,Because of black-box modeling ability of neural networks,the presented method can identify noninear time-varying systems with unknown structure,In order to improver the real-time capability of the algorithm ,the neural network is trained by a simple fast learning algorthm based on local least squares presented by the authors,The effectiveness and the perfomence of the method are demonstrate3d by some simulation results. 相似文献
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王燕 《读与写:教育教学刊》2011,(8):4-5
Through his theory,Michel Foucault uses the epistemological approach to answer the question "how?" concerning the colluding concepts of knowledge,discourse,and the order of discourse.He aims at getting to know,almost deciphering,the processes and circumstances of knowledge by answering the question "How do we know what we know?" 相似文献
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Qu Qiubai is a Marxist,proletarian revolutionist,great thinker and theorist who was never afraid of conducting creative thinking.It is creative thinking that have helped Qu Qiubai to accurately feel the pulse of the times,to timely respond to the requirement of the times and to scientifically answer the realist question raised by times in carrying out the China’s revolutionary theory into practice.In a word,creative thinking gave full demonstration to Qu Qiu bai’s time value by following the general trend and requirements of history and keeping up with the times. 相似文献
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Ⅰ.选择填空。从A、B、C、D四个选项中,选出可以填入空白处的最佳答案。1.Can you find the answer ——the question? A.to B.of C.in D.on2.China is famous ——her Great Wall. A.as B.for C.to D.of3.The colour of his cage is different from——of yours. 相似文献
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《海外英语》2014,(10):12-12
Authentic conversations by native American speakers Swiss Army Knives This month two young Americans are talking about Swiss Army Knives and gadgets. Listen to the conversation and answer these questions：1. What does one of the speakers say in favor of Swiss Army Knives？ 2. What does the other speaker say against Swiss Army Knives？ 相似文献
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To predict the economic loss of crops caused by acid rain, we used partial least squares （PLS） regression to build a model of single dependent variable - the economic loss calculated with the decrease in yield related to the pH value and levels of Ca^2＋, NH4^＋, Na^＋, K^＋, Mg^2＋, SO4^2-, NO3^-, and Cl^- in acid rain. We selected vegetables which were sensitive to acid rain as the sample crops, and collected 12 groups of data, of which 8 groups were used for modeling and 4 groups for testing. Using the cross validation method to evaluate the performace of this prediction model indicates that the optimum number of principal components was 3, determined by the minimum of prediction residual error sum of squares, and the prediction error of the regression equation ranges from -2.25% to 4.32%. The model predicted that the economic loss of vegetables from acid rain is negatively corrrelated to pH and the concentrations of NH4^＋, SO4^2-, NO3^-, and Cl^- in the rain, and positively correlated to the concentrations of Ca^2＋, Na^＋, K^＋ and Mg^2＋. The precision of the model may be improved if the non-linearity of original data is addressed. 相似文献