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Consumer products such as shampoos and sunscreens, even ones boosted as safer, may contain potentially harmful chemicals not lis

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问题     Consumer products such as shampoos and sunscreens, even ones boosted as safer, may contain potentially harmful chemicals not listed on their labels, according to a study out today that tested dozens of them. Chemicals that【C1】______hormones or affect health were found in all 42 of conventional products sampled, as well as in most—32 of 43—of the alternative products【C2】______as safer, including some by Seventh Generation, the study says. The scientific group studies the【C3】______between the environment and women’s health. "It was【C4】______," says Julia Brody, co-author of the findings. She says consumers using a typical array of products are【C5】______many harmful chemicals.
    Seventh Generation, which makes six of the alternative products tested, welcomed the study’s goal of e-ducating consumers【C6】______questioned its method. Martin Wolf, its director of product sustainability, says the company【C7】______none of the chemicals the study found in three of its products. "The fact that trace amounts were found raises questions" about possible cross-contamination in either【C8】______or testing, he says. "There are so many【C9】______chemicals in this world that they’re finding their way【C10】______everything."
    John Spengler, a professor of environmental health at Harvard School of Public Health, who was not【C11】______the study, says the work is "very important" for improving health concerns and【C12】______companies to possible cross-contamination in products, whether from the supply【C13】______or the packaging. "You don’t want to worry people【C14】______a reasonable extent," he says, adding that trace amounts of some chemicals may not pose a problem.【C15】______, he says, there’s an "interactive" accumulating effect from broad use of chemicals,
    【C16】______it’s important to look at them as a group. The study, which tested for 66 chemicals and found 55 of them in the products, says sunscreens and fragrant products had the most【C17】______chemicals and some of the highest concentrations. Brody, who says there needs to be a more【C18】______listing and testing of a product’s ingredients,【C19】______consumers to use fewer products, seek plantbased ingredients and rely on【C20】______water, baking soda and vinegar for cleaning.
【C20】
选项 A、ground
B、hot
C、drinking
D、plain
答案D
解析 本句提到的plant-based ingredients(植物提取物)、baking soda(小苏打)和vinegar(醋)等都是天然无害的物质，因此所填单词与water搭配也应具备这样的特点。plain water指“白开水，自来水，清水”,符合语义逻辑，故选D项。
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