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.
【B14】

选项 A、with
B、by
C、on
D、of

答案B

解析 本题考查动词与介词的搭配。这一问题由后面提到的所发生的事情暴露出来,表示由某人做成的或导致的某事,通常用by,故选项[B]符合文意,为正确答案。
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