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  3. The noise of a leaf blower is louder in America than that in New Zealand. Hypertension can be caused by the noise lower than 65

The noise of a leaf blower is louder in America than that in New Zealand. Hypertension can be caused by the noise lower than 65

admin2013-06-02  26
问题 The noise of a leaf blower is louder in America than that in New Zealand.
Hypertension can be caused by the noise lower than 65 db.
选项 A、Y
B、N
C、NG
答案B
解析 定位到文章第四段第二句中...but noise at less than 75 db may be linked to hypertension， and that at just 65 db leads to stress(低于七十分贝的噪音可能会导致高度紧张，六十五分贝的噪音可导致压力)，题干与原文内容不符。
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