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  3. Guidelines for food labelling are made with good intentions, but they end up leaving consumers baffled by ambiguous marketing ra

Guidelines for food labelling are made with good intentions, but they end up leaving consumers baffled by ambiguous marketing ra

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问题     Guidelines for food labelling are made with good intentions, but they end up leaving consumers baffled by ambiguous marketing rather than giving them the facts. Eating【B1】______has never been especially easy, but【B2】______the rules were straightforward: cut down on fat, get most calories from carbs and eat five portions of fruit and vegetables a day.
    In recent years, though, those simple rules have become more【B3】______Saturated fat, for example, may not be as【B4】______as we once thought. Avoiding it may drive us to【B5】______eat more sugar. Amid the【B6】______there was always the five-a-day rule to【B7】______back on. But even that is now being sliced, diced and mashed. A long and deliberate process of " de-bittering" has made fruit and veg tastier, but stripped them【B8】______some of their most valuable【B9】______They are still a healthy option, but may be less so than we have been led to believe.
    It is easy, but【B10】______, to blame the food industry. Growers and retailers are only【B11】______to consumer demand. But how many consumers have heard of de-bittering? Can you demand something you don’t know about? The real【B12】______is a lack of reliable information,【B13】______by well-meaning but counterproductive rules on food labelling.
    This problem is exposed【B14】______what happens when the industry【B15】______a variety such as Beneforte broccoli, bred to be high in a nutrient with proven anticancer【B16】______But when retailers want to【B17】______this fact, they find their hands are tied.【B18】______giving evidence-based information, they have to use science-lite slogans such as "Naturally high in the plant nutrients, glucosinolates, with an exquisite sweet flavour. " That is the worst of all worlds,【B19】______healthfulness with sweetness—the opposite of what is going on in other fruit and veg. Food labelling rules are guided by the belief that consumers are incapable of understanding nuanced【B20】______information. That is patronising and past its sell-by date.
【B2】
选项 A、at most
B、at last
C、at least
D、at once
答案C
解析 本题考查介词词组辨析。该句主要讲“饮食健康虽然不易，但规则却清晰易懂”。这两句话之间是一个转折关系。四个选项分别为：[A]at most“顶多”；[B]at last“最终”；[C]at least“至少”；[D]at once“立即”。只有at least符合文意，故选项[C]为正确答案。
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