Noise constitutes a real and present danger to people’s health. Day and night, at home, at work, and at play, noise can produce

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问题     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【C1】______ and psychological stress. No one is【C2】______  to this stress. Though we seem to 【C3】______ to noise by ignoring it, the ear, in fact, never closes and the body still【C4】______ sometimes with extreme tension--to a strange sound in the night.
    The【C5】______ we feel when faced with noise is the most common outward【C6】______ of the stress building up inside us. The more【C7】______ and more serious health hazards【C8】______ with the stress caused by noise traditionally hay been given much【C9】______ attention.【C10】______ , when we are annoyed or made irritable by noise, we should consider, these symptoms fair warning【C11】______ other things may be happening to us, some of which may be damaging our health.
   【C12】______  many health hazards of noise, hearing loss is the most clearly【C13】______ and measurable by heal professionals. The other hazards are harder to【C14】______ . For many of us, there may be a risk that  【C15】______ to the stress of noise increases susceptibility to disease and infection. The more【C16】______ among us may experience noise a【C17】______  factor in heart problems and other diseases. Noise that causes annoyance and irritability in health persons may have more serious consequences for those already ill in mind or body.【C18】______ , the link between noise and many disabilities or diseases has not yet been【C19】______ demonstrated, and we【C20】______ to dismiss annoyance caused by noise as a price to pay for living in the modem world.  
【C9】

选项 A、more
B、less
C、better
D、worse

答案B

解析 语篇理解题。本句的意思是由噪音压力引起的微妙而严重的健康危害被人们所忽视,因此正确答案为B less。
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