2. 外语
  3. You probably know that it’s better for both you and the environment if you buy an organic tomato instead of one that’s been dous

You probably know that it’s better for both you and the environment if you buy an organic tomato instead of one that’s been dous

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问题     You probably know that it’s better for both you and the environment if you buy an organic tomato instead of one that’s been doused in pesticides, but there are lots of other things to consider before venturing down the aisle of your local supermarket(or farmer’s market).
    The explosion in【C1】______product and other foods during the last few years has been an extremely【C2】______development in the food industry. However, 【C3】______till exists about exactly what the organic【C4】______means.
    Do you know the difference between a cereal that’s "organic" , "100% organic" , and "made with organic【C5】______? The USDA has clearly defined standards that【C6】______which of those labels can legally go on your raisin bran. You can learn more about them at www. usda. gov.
    Organic foods are great, but the jury is still very much out【C7】______another new development in the food world: genetically【C8】______organisms(GMOs). No one knows for certain the short and【C9】______effects of these products of gene engineering, 【C10】______there’s a chance they could lead to the【C11】______creation of " superweeds" or【C12】______with natural plant stocks, for more information on GMOs, we recommend visiting www. saynotogmos. org.
    【C13】______you’re shopping, don’t forget to consider the companies behind the【C14】______names. One cereal company might be an environmental champion, 【C15】______the other manufactures its corn flakes via【C16】______environmental practices. An easy way to compare two companies is to use【C17】______such as www. responsibleshopper. com. They present both the good and bad sides of every company they【C18】______, and they grade hundreds of companies on social, ethical and environmental issues.
    Remember: 【C19】______conscious shopping is a powerful tool for effecting change. You can make a difference every time you fill your【C20】______cart.
【C15】
选项 A、when
B、while
C、as
D、because
答案B
解析 逻辑关系。据上下文的关键词“One…the other…”和An easy way to compare two companies，可见这句话是对两类公司的对比。故答案为B。
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