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

选项 A、Out of
B、Of
C、Among
D、In

答案B

解析 考查语法知识。本题中要表达的是所有健康危害中的一种,Of符合文意,B为正确答案。Out of表示“在……范围外”和In意思相反,但都有表示比率的意思,而文中并不存在比率比较,故这两项都不正确:Among可用来表示比较的范围,相当于one of,常与最高级连用,也可排除。
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