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It is shown that there are usually________ lev
问题详情
It is shown that there are usually________ levels of hazardous gases, particulate matter and other chemical nasties indoors than outside.请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：
【线索词】hazardousgases；particulatematter；chemicalnasties【定位处】第三段倒数第二句【解析】higher.该段倒数第二句Researchshowsthatlevelsofpollutantssuchashazardousgases，particulatematterandotherchemicalnastiesarcusuallyhigherindoorsthanout…是本题出处。题干只是用therebe结构替换了原文中的主谓结构，但二者都是比较结构且比较对象一致，意思没变，故应填higher。【设题处】对比处设题
