57. According to the passage, a continuous noise of ___________decibels can make people deaf.

A. less than 85     B. less than 65

C. about 65        D. more than 85

58. 10 percent of the workers in Britain are being deafened because ____________.

A. they are working in noisy places         B. they often listen to pop music

C. they live near airports                  D. they are too busy to listen to others’ talk

59. The government of China is trying to reduce _____________.

A. only the air pollution              B. only the air and water pollution

C. only the water pollution            D. the air, water and noise pollution

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