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As more people live closer together, and as they use machines to produce leisure, they find that their leisure, and even their working hours, become spoilt by a by-product of their machines--namely, noise. Noise is nowadays in the news; it has acquired political status, and public opinion is demanding, more and more insistently, that something be done about it. So it was very appropriate’ that many people professionally interested in noise control should meet to discuss their common problems at a large-scale conference. In the three days of the Conference at Teddington, 25 papers were presented; and faced with the pile of texts, whose contents ranged from sophisticated aerodynamics to general comments on the irritation expressed by neighbours, it was difficult to sort out the new ideas which remain active in one’s mind six months from now, from the big mass of valuable knowledge and facts which will remain on the s
A. They refer to the objective and subjective nature of the problem respectively.
B. Noise is dispensable in terms of energy but it is indispensable in sociological terms.
C. Noise is hard to control in terms of energy while it may be controllable in sociological terms.
D. All of the above.

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{{B}}TEXT B{{/B}}

As more people live closer together, and as they use machines to produce leisure, they find that their leisure, and even their working hours, become spoilt by a by-product of their machines--namely, noise. Noise is nowadays in the news; it has acquired political status, and public opinion is demanding, more and more insistently, that something be done about it. So it was very appropriate’ that many people professionally interested in noise control should meet to discuss their common problems at a large-scale conference. In the three days of the Conference at Teddington, 25 papers were presented; and faced with the pile of texts, whose contents ranged from sophisticated aerodynamics to general comments on the irritation expressed by neighbours, it was difficult to sort out the new ideas which remain active in one’s mind six months from now, from the big mass of valuable knowledge and facts which will remain on the s
A. To cultivate common politeness.
B. To tackle conflicts of interest.
C. To economize expenditure.
D. To utilize technology.

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Nowadays, more people are living closer together, and they use machines to produce leisure. As a result, they find that their leisure, and even their working hours,, become (1) by a byproduct of their machines, (2) noise. Noise is in the news; it has acquired political (3) , and public opinion is demanding, more and more (4) , that something (5) about it.
To control noise is to demand much (6) (Annoyance arises often from, (7) of common courtesy), a sense of proportion ( There is usually a (8) of interest if a noise is to be stopped), the (9) of money ( and it is far more economical to do this early (10) than late), and, finally, technical knowledge.
Though the (11) care for noise is to stop it at its source, this may in many (12) be impossible. The next (13) is to absorb it on its way to the ear. Domestic noises may be controlled by forethought and (14) , and indust
A. controversy
B. contrast
C. contradiction
D. conflict

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