填空题. A. subtle B. conclusively C. increases D. as E. complicate F. preserve G. adjust to H. warning I. anxiety J. psychological K. annoyance L. immune M. consequently N. adapt O. identify Noise constitutes a real and present danger to people's health. Day and night, at home, at work, and at play, noise can produce serious physical and 1 stress. No one is 2 to this stress. Though we seem to 3 noise by ignoring it, the ear, in fact, never closes and the body still responds—sometimes with extreme tension—to a strange sound in the night. The 4 we feel when faced with noise is the most common outward disease of the stress building up inside us. The more 5 and more serious health hazards associated with the stress caused by noise traditionally have been given much less attention. Nevertheless, when we are annoyed or made irritable by stress, we should consider these symptoms fair 6 that other things may be happening to us, some of which may be damaging our health. Of all health hazards of noise, hearing loss is most clearly observable and measurable by health professionals. The other hazards are harder to 7 . For many of us, there may be a risk that exposure to stress of noise 8 susceptibility to disease and infection. However, the link between noise and many disabilities or diseases has not yet been 9 demonstrated, and we tend to dismiss annoyance caused by noise 10 a price to pay for living in the modern world.