题目内容
What do we mean by a perfect English pronunciation？ In one 【B1】 there are as many different kinds of English as there are speakers of it. 【B2】 two speakers speak in exactly the same 【B3】. We can always hear differences 【B4】 them, and the pronunciation of English 【B5】 a great deal in different geographical 【B6】. How do we decide what sort of English to use as a 【B7】？ This is not a question that can be 【B8】 in the same way for all foreign learners of English. 【B9】 you live in a part of the world 【B10】 India or West Africa, where there is a long 【B11】 of speaking English for general communication purpose, you should 【B12】 to acquire a good variety of the pronunciation of this area. It would be 【B13】 in these circumstances to use as a model BBC English or 【B14】 of the sort. On the other hand, if you live in a country 【B15】 there is no traditional use of English, you must take 【B16】 your model some form. of 【B17】 English pronunciation. It does not 【B18】 very much which form. you choose. The most 【B19】 way is to take as your model the sort of English you can 【B20】 most often.
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时间数列的分解模型中，乘法模型是假定四种变动因素相互独立，时间数列各时期发展水平是各个构成因素的乘积。
The word "pathetic" in Paragraph 3 most probably means ______.
China to help Europe Develop GPS Rival
China is to contribute to a new global satellite navigation system being developed by European nations. The Galileo satellite system (51) a more accurate civilian alternative to the Global Positioning System(GPS), operated by the US military. China will provided 230m Euros (USD 259m) in (52) and will cooperate with technical, manufacturing and market development. "China will help Galileo to (53) the major world infrastructure for the growing market for location services, " said Loyola de Palacio, EU transport commissioner.
A new center that will coordinate co-operation was also announced (54) ) the European Commission, the European Space Agency (ESA) and the Chinese Ministry of Science and Technology not long (55) . The China-Europe Global Navigation Satellite System Technical Training and Cooperation Center will be (56) at Beijing University. China has a substantial satellite launch industry and could potentially help the Galileo satellites.
The US has claimed that Galileo could interfere (57) the US ability to downgrade the GPS service during military conflicts. European officials say this is unfounded and counter that US opposition (58) the commercial challenge Galileo would present to GPS. Galileo will be precise to within a meter, while civilian GPS service is accurate to around 10 meters.
The Galileo satellite constellation will (59) 27 operational and three reserve satellites orbiting the Earth at an altitude of 23,600 km. The satellites will be strung along three medium-Earth orbits at 56 degrees inclination to the equator and will provide global coverage. The system should be operational by 2008 and the entire project is expected to (60) around 3.2 billion Euros(USD 3.6 billion).
The European Commission has said Galileo will primarily be used for transportation technology, scientific research, land management and disaster monitoring.
Galileo will provide two signals: a standard civilian one and an encrypted, wide-band signal (61) the Public Regulated Service (PRS). This second signal is designed to withstand localized jamming and will be used by police and military services in Europe. European Commission (62) have said China will not be given access to the PRS.
The first Galileo satellite is scheduled to launch late in 2004, Clocks on board the (63) Will be synchronized through 20 ground sensors stations, two command centers and 15 uplink stations.
Receivers on the ground will use time signals from the satellites to precisely calculate their (64) . A "search and rescue" function will also (65) distress signals be relayed through the constellation of satellites.
(51)
Very few go out into the world knowing exactly what they want and realizing their own abilities. The reason behind all this confusion is that there never has been a proper vocational guidance in our educational institution. Nearly all grope (摸索) in the dark and their chief concern when they look for a job is to ask what salary is like. They never bother to think whether they are suited for the job or, even more important, whether the job suits them. Having a job is more than merely providing yourself and your dependants with daily bread and some money for leisure and entertainment. It sets a pattern of life and, in many ways, determines social status in life, selection of friends, leisure and interest.
In choosing a career you should first consider the type of work which will suit your interest. Nothing is more pathetic than taking on a job in which you hive no interest, for it will not only discourage your desire to succeed in life but also ruin your talents and ultimately make you an emotional wreck (受到严重伤害的人) and a bitter person.
The reason why some people are unlikely to succeed in life is that they ______.
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