共查询到10条相似文献，搜索用时 31 毫秒
1.
Wendy Franklin 《英语沙龙》2011,(1):22-22,64
The Smith Jones Robinson Riddle
On a train, Smith, Robinson and Jones are the fireman, the brakeman and the engineer, but NOT respectively. Also aboard the train are three businessmen who have the same names： a Mr. Smith, a Mr. Robinson and a Mr. Jones： Using the clues below, can you determine the identity of the Engineer？. 相似文献
2.
A Mr Jones had a few days’ holidays, so he decided to visit the mountains by train. During the trip he often put his head out of the window and looked at the mountains. Soon the wind blew his beautiful hat off. Mr Jones quickly took his old bag and threw that out of the window, too. The other people on the train laughed. They asked if his bag would 相似文献
3.
《中学生英语读写(高中版)》2002,(10)
Mr.Robinson never went to a dentist because he was afraid,but thenhis teeth began hurting a lot.and he had to go to a dentist.The dentist did alot of work in his mouth for a long time.On the last day Mr.Robinson said to 相似文献
4.
石继忠 《中学英语园地(高三版)》2010,(9):6-7
Mr and Mrs Smith had always spent their summer holidays in New Jersey in the past, staying in a small inn at the foot of a hill. One year, however, Mr Smith made a lot of money in his busi- ness. So they decided to go to London and stay at a really good hotel while they were visiting that famous city. 相似文献
5.
Mr Smith was in troublethose days. He drove a car forMr Black, a rich business-man. He worked hard and theshopkeeper liked him. But hecouldn‘t work when he dranktoo much. And once he al-most fell into the river whenhe drove along the bridge. MrBlack became angry and wasgoing to send him away. Hehad a big family and wasafraid of that and promisedhe would stop drinking atonce. The man told him towait to be dealt with. OneMonday morning, Mr Smithcame into the office, with twobadly burned ears. “Whathappened to your ears?”asked Mr Black. 相似文献
6.
王良华 《中学英语园地(高三版)》2007,(5)
Mr Smith was a boss of a butcher's shop(肉店). One day a hungry dog came to the shop. The dog wagged(摇动) its tail again and again. The boss gave it some meat to eat. So later on, the dog always stayed with the owner and looked upon him as its own master. When the people found that the boss was friendly(友好) to the dog, they thought Mr Smith could be trusted. As time passed by, more and more customers(顾客) came to buy fresh meat(鲜肉). And he was getting richer and richer. 相似文献
7.
Mr Scott lives in a small town. He‘s known Mike Smith since the young man began to work in his office. Mike is able and works hard. The boss likes him. It makes Mr Scott unhappy. He‘s afraid the young man will take his place. So he hates him and tries his best to make the young man leave. 相似文献
8.
张超 《中学生英语读写(高考版)》2002,(3)
Mr.Smith was governor of New York State.He was a famous man. He was horn very poor on the East Side of New York City.He had little education.He worked very hard and won great success.One day,as governor, he was visiting the state prison at Sing Sing.Sing Sing is one of the largest prisons in the United States. The head of the prison asked Mr. Smith to say 相似文献
9.
The story was set in the winter of 2005. I intended to pay a visit to my uncle by train. Unfortunately, as the train amved at the small town where my uncle lived, it was deep into night2 and what impressed me most was the chilling and penetrating wind. 相似文献
10.
With the continuous improvement of the train speed, the dynamic environment of trains turns out to be aerodynamic domination. Solving the aerodynamic problems has become one of the key factors of the high-speed train head design. Given that the aerodynamic drag is a significant factor that restrains train speed and energy conservation, reducing the aerodynamic drag is thus an important consideration of the high-speed train head design. However, the reduction of the aerodynamic drag may increase other aerodynamic forces （moments）, possibly deteriorating the operational safety of the train. The multi-objective optimization design method of the high-speed train head was proposed in this paper, and the aerodynamic drag and load reduction factor were set to be optimization objectives. The automatic multi-objective optimization design of the high-speed train head can be achieved by integrating a series of procedures into the multi-objective optimization algorithm, such as the establishment of 3D parametric model, the aerodynamic mesh generation, the calculation of the flow field around the train, and the vehicle system dynamics. The correlation between the optimization objectives and optimization variables was analyzed to obtain the most important optimization variables, and a further analysis of the nonlinear relationship between the key optimization variables and the optimization objec- tives was obtained. After optimization, the aerodynamic drag of optimized train was reduced by up to 4.15%, and the load re- duction factor was reduced by up to 1.72%. 相似文献