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填空题{{B}}Directions:{{/B}} Read the following text and choose the best answer from the right column to complete each of the unfinished statements in the left column. There are two extra choices in, the right column. Mark your answers on the ANSWER SHEET.The human voice, like any sound produced by thrumming a stretched string, has a fundamental frequency. For voice, the centre of that frequency lies mostly below 300Hz depending on the speaker's sex. Information is conveyed through simultaneous higher-frequency overtones and additional components that can stretch up to 20,000 Hz (20kHz). Modern hearing aids are able to distinguish only a small part of that range, typically between 300Hz and 6kHz, reducing noise and amplifying those frequencies where the wearer's hearing is weakest. But differentiating elements of many common parts of speech occur in higher frequencies. This is the result both of harmonics that ripple out from the main tone, and from non-voiced elements used to utter consonants, which employ the tongue, teeth, cheeks and lips. Take the words "sailing" and "failing". Cut off the higher frequencies and the two are indistinguishable. The problem is compounded on telephone calls, which do not transmit frequencies below 300Hz or above 3.3kHz. People with hearing aids experience this problem constantly, says Brian Moore of the University of Cambridge. Typical hearing loss tends to be most acute at frequencies above 10kHz, which contain quieter sounds but where speech can still include important cues. Older hearing aids cut off at no higher than 6kHz, but much modern equipment stretches this range to 8-10kHz. However, a problem remains, Dr. Moore says, because bespoke hearing-aid calibrations for individual users, called "fittings", do not properly boost the gain of these higher frequencies. So Dr. Moore and his colleagues have come up with a better method. Their approach can be applied to many existing devices, and is also being built into some newer ones. A key step in any fitting involves testing an individual's ability to hear sounds in different frequency bands. Each hearing loss is unique, and for most users a standard profile would be too loud in some ranges and too soft in others. But current tests pay scant attention to the higher frequencies that a device's tiny speaker can produce, regardless of whether the user needs a boost. Dr. Moore's new test, known as CAM2, which is both a set of specifications and an implementation in software, extends and modifies fittings to include frequencies as high as 10kHz. When the results are used to calibrate a modem hearing aid, the result is greater intelligibility of speech compared with existing alternatives. CAM2 also improves the experience of listening to music, which makes greater use of higher frequencies than speech does. A.be applied to many existing devices B.use the tongue, teeth, cheeks and lips C.enhance the gain of higher frequencies D.pays little attention to the higher frequencies E.reduce noise and amplify certain frequencies F.transmit frequencies below 300Hz or above 3.3kHz G.extends and modifies fittings to include high frequencies
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填空题 It is ______ parents that children inherit social and political values.
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填空题The agency agreement has been drawn ______ for the period of one year.
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填空题Such being the case, we have to ask you to consider if you can make reduction in your price, (8) 10/%. As our order would be worth around Stg. 50000, you may think it worthwhile to make a concession.
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填空题{{B}}Directions: Pick out the appropriate expressions from the eight choices below and complete the following dialogues by blackening the corresponding letter on the Answer sheet.{{/B}} A. Isn't she your girlfriend B. They said she had left for LondonC. What's the problem D. Her office left you a messageE. Why not invite me, then F. They said they had phoned LindaG. The manager of their office had suddenly fallen iii H. Sorry, I lost my wayA: Are you phoning Linda?B: Yes. But how did you know?A:{{U}} (56) {{/U}}B: What did they say?A:{{U}} (57) {{/U}}B: What happened?A:{{U}} (58) {{/U}}. She had to go and take his place for three days.B: That's too bad.A:{{U}} (59) {{/U}}?B: You see, I had arranged for us to have a dinner with a friend tonight.A:{{U}} (60) {{/U}}?B: Sure. Why not?
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填空题Author____Title____ Every layer they strip Seems camped on before. The bog holes might be Atlantic seepage The wet center is bottomless.
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填空题If two theories are equal {{U}}to{{/U}} their ability to account {{U}}for{{/U}} a body of data, the theory that {{U}}does so{{/U}} with the smaller number of assumptions is {{U}}to be preferred{{/U}}. A. to B. for C. does so D. to be preferred
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填空题With steady wages, he would be able to feed himself and help his family.
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填空题According to Habermas the move from Capitalism to Communism(if it occurs)will______as a result of reason and communicative action.(occur)
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填空题Shall I just order beer, or is there some ______ drink you prefer? 我只点些啤酒,或是你有什么特别喜欢喝的饮料?
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填空题The news that her son failed to pass the exam was so ________ that she hard believe it. (disappoint)
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填空题我们费了九牛二虎之力将门弄开. (to have …job to do).
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填空题This contract Can have ______ financial consequences affecting not just you,but your home and family too.这个合同深远的经济后果不仅影响到你,而且影响到你的家庭。
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填空题In Shakespeare"s time, there was a King"s(or Queen"s)English to be proud of. The Elizabethans blew on it as on a dandelion clock, and its seeds multiplied, and floated to the ends of the earth.
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填空题I was (please) ______ to have received your letter dated May 20th last month.
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填空题Retailers offered deep discounts and extra hours this weekend in the bid to lureshoppers.A.offeredB. deepC.in the bidD.to lure
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填空题We were young men when we first met in london, poor, struggle , full of hope and ideas. A. when B. first met C. struggle D. full of
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填空题rel ie f
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