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1.
1.问:He took arl interest__old coins and spent a lot of money onhis hobby.A.in search of B.in spite of C.in retum D.in the search for答案选D。为什么不选A呢?请区别A和D。 (福建漳平一中刘运发)答:介词短语in search of与in the search for均有“寻找,寻求,追  相似文献   

2.
Oil   总被引:1,自引:0,他引:1  
Almost everyone in the world uses oil(石油)1 some way. Without oil, the world will stop, so men 2 it everywhere. Oilmen drill(沙漠)foroil in deserts(钻探),in mountains and 3 thesea.Quite often they find 4 . but they search(寻找)for oil always 5 . Oil is very important  相似文献   

3.
一、Manhunt for Sniper is Now Largest of ItsKind 寻找连环杀手by Gail Russell ChaddockTo an anxious public accustomed to seeing brutal crimes wrapped up in an hour on TV crime shows, the search for the sniper terrorizing the greater Washington area seems painfully slow.Critics say there have been errors, leaks, and miscommunications that may have confused the public and exposed too much of the investigation and its resources to the sniper.  相似文献   

4.
lead引导/导致lead sb.to do sth.意为“引诱/导致某人做某事”。The cold weather yesterday led the teacher toget a bad cold.昨天寒冷的天气使得老师患了重感冒。lead还可作“引导,带领”讲,着重指先行引路,引导某人达到某一目的地,其过去式与过去分词均为led。它与我们以前学过的guide和direct是有区别的:guide侧重引导参观,一直陪在一旁,边走边讲;direct表示“指路“,但不一同去。in search ofin search of相当于“looking for sth.”,表示“寻求,寻找”。在句中可作状语或表语。如:We droveround the city in search of scenic spo…  相似文献   

5.
We studied the information search behaviors of Chinese consumers of miniature automobiles. First, we identified the main sources where consumers acquire or seek information about miniature automobiles and discussed their extent of information search. Then, based on logistic regression and optimal scaling regression of statistics, we studied the influences of characteristics of consumers of miniature automobiles on the extent of information search and on Internet usage.. The results indicate that consumers often utilize four sources to obtain information about miniature automobiles. The dominant information source for consumers is their friends/family, followed by dealers, newspapers, and TV. Age, occupation, education and income significantly affect the extent of information search, but gender and city of residence do not have significant impacts. Age, city of residence, occupation, education and income produce significant influences on Internet usage. Gender has an insignificant influence on whether a consumer uses the Internet to search for information.  相似文献   

6.
In this paper,we propose a novel adjustable multiple cross-hexagonal search(AMCHS) algorithm for fast block motion estimation. It employs adjustable multiple cross search patterns(AMCSP) in the first step and then uses half-way-skip and half-way-stop technique to determine whether to employ two hexagonal search patterns(HSPs) subsequently. The AMCSP can be used to find small motion vectors efficiently while the HSPs can be used to find large ones accurately to ensure prediction quality. Simulation results showed that our proposed AMCHS achieves faster search speed,and provides better distortion performance than other popular fast search algorithms,such as CDS and CDHS.  相似文献   

7.
In this paper, the authors propose a refined Branch-and-Bound algorithm for affine-transformation based image registration. Given two feature point-sets in two images respectively, the authors first extract a sequence of high-probability matched point-pairs by considering well-defined features, Each resultant point-pair can be regarded as a constraint in the search space of Branch-and-Bound algorithm guiding the search process. The authors carry out Branch-and-Bound search with the constraint of a pair-point selected by using Monte Carlo sampling according to the match measures of point-pairs. If such one cannot lead to correct result, additional candidate is chosen to start another search. High-probability matched point-pairs usually results in fewer loops and the search process is accelerated greatly. Experimental results verify the high efficiency and robustness of the author's approach.  相似文献   

8.
Based on the generalized Fischer-Burmeister function, Chen et al in 2008 put forward a regularization semismooth Newton method for solving the nonlinear complementarity problem with a p0 -function. In this paper, we investigate the above algorithm with the monotone line search replaced by a non-monotone line search. It is shown that the non-monotone algorithm is well-defined, and is globally and locally superlinearly convergent under standard as- sumptions.  相似文献   

9.
search(搜查人、物或场所)、search for(搜寻人、物或场所),reach(到达、拿到)、reach for(伸手去拿),leave(离开某地)、leave for(动身去某地),prepare(准备)、prepare for(为……作准备),enter(进入)、enter for(报名参加),run(经营,跑)、run for(报名参加),  相似文献   

10.
The search for a new Canadian Flag started inearnest1 in 1925 when a committee2 of the Privy Council3began to research possible designs for a national flag.However,the work of the committee was never finished.Later, in 1946, a select parliamentary4 committee was  相似文献   

11.
一、动词后有无介词search(搜查人、物或场所)、search for(搜寻人、物或场所),reach(到达、拿到)、reach for(伸手去拿),leave(离开某地)、leave for(动身去某地),prepare(准备)、prepare for(为……作准备),enter(进入)、enter for(报名参加),run(经营,跑)、run for(报名参加),stand(站,忍受)、stand  相似文献   

12.
使用试错法加快扩频通信伪随机码捕获   总被引:1,自引:0,他引:1  
An optimun search algorithm for the coherent acquisition in direct-sequence spread-spectrum (DSSS) receivers is proposed and analyzed in this paper. The system consists of two major parts: a phase region estimator and a phase alignment detector. We use an auxiliary sequence to correlate the incoming signal in the phase region estimator. Since the cross-correlation value between the auxiliary sequence and the incoming PN signal has linear magnitude, and can provide the direction for the phase updating, an optimum search algorithm, try and error method, can be adopted to obtain the phase region information of the incoming signal. The mean acquisition time is derived through the signal flow graph theory. The time is compared with that of the conventional serial search scheme, and the results show that the proposed scheme can achieve coarse acquisition significantly faster than the conventional scheme.  相似文献   

13.
三种激情     
Three passions,simple but overwhelminglystrong,have governed my life:the longing forlove,the search for knowledge.and unbearablepity for the suffering of mankind.These passions.like great winds.have blown me hither and thither.in a wayward course,over a deep ocean of an-guish,reaching to the very verge of despair.  相似文献   

14.
Various index structures have recently been proposed to facilitate high-dimensional KNN queries, among which the techniques of approximate vector presentation and one-dimensional (1D) transformation can break the curse of dimensionality. Based on the two techniques above, a novel high-dimensional index is proposed, called Bit-code and Distance based index (BD). BD is based on a special partitioning strategy which is optimized for high-dimensional data. By the definitions of bit code and transformation function, a high-dimensional vector can be first approximately represented and then transformed into a 1D vector, the key managed by a B -tree. A new KNN search algorithm is also proposed that exploits the bit code and distance to prune the search space more effectively. Results of extensive experiments using both synthetic and real data demonstrated that BD out- performs the existing index structures for KNN search in high-dimensional spaces.  相似文献   

15.
"Darkness gives me dark eyes but I use them to search for light"-a famous poem that comes from China reminds me of Andy, the hero in The Shawshank Redemption.  相似文献   

16.
The step-size procedure is very important for solving optimization problems. The Armijo step-size rule, the Armijo-Goldstein step-size rule and the Wolfe-Powell step-size rule are three well-known line search methods. On the basis of the above three types of line search methods and the idea of the proximal point methods, a new class of step-size rules was proposed. Instead of a single objective function f, f +1/2(x - xk)^TBk(x-Xk) was used as the merit function in iteration k, where Sk is a given symmetric positive definite matrix. The existence of the steplength for the new rules was proved. Some convergence properties were also discussed.  相似文献   

17.
线性约束凸规划的一个新原-对偶路径-跟踪内点算法   总被引:1,自引:0,他引:1  
In this paper, a primal-dual path-following interior-point algorithm for linearly constrained convex optimization (LCCO) is presented. The algorithm is based on a new technique for finding a class of search directions and the strategy of the central path. At each iteration, only full-Newton steps are used. Finally, the favorable polynomial complexity bound for the algorithm with the small-update method is deserved, namely, O(√nlog n/ε).  相似文献   

18.
《海外英语》2008,(8):25
Information at Your Fingertips 指尖的信息   Your salary expectations should be realistic. Every position has a general salary range, based on what professionals in that job are currently earning. Research the range for your position before you start your job search.……  相似文献   

19.
Media streaming delivery in wireless ad hoc networks is challenging due to the stringent resource restrictions,po-tential high loss rate and the decentralized architecture. To support long and high-quality streams,one viable approach is that a media stream is partitioned into segments,and then the segments are replicated in a network and served in a peer-to-peer(P2P) fashion. However,the searching strategy for segments is one key problem with the approach. This paper proposes a hybrid ants-like search algorithm(HASA) for P2P media streaming distribution in ad hoc networks. It takes the advantages of random walks and ants-like algorithms for searching in unstructured P2P networks,such as low transmitting latency,less jitter times,and low unnecessary traffic. We quantify the performance of our scheme in terms of response time,jitter times,and network messages for media streaming distribution. Simulation results showed that it can effectively improve the search efficiency for P2P media streaming distribution in ad hoc networks.  相似文献   

20.
It is of great urgency for us to search for teaching methods which gradually enable students to obtain English commu-nicative competence within 45minutes each class in secondary education. This paper has made an attempt to explore the solu-tions to managing class atmosphere and to make forward steps to achieve the teaching results of interplaying between teachersand students.  相似文献   

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