A. diet B. regularly C. healthy D. commonly E. r

游客2023-10-23 15

问题    A. diet       B. regularly       C. healthy       D. commonly       E. reduced
F. samples    G. contains       H. participated I. drink          J. measured
K. avoiding L. provide       M. menu          N. advantages    O. involves
Sugarless yoghurt could help beat bad breath, tooth decay and gum disease, say scientists. Japanese researchers found eating the yoghurt【C1】________levels of hydrogen sulphide (硫化物)— a major cause of bad breath—in 80% of volunteers. The keys are active bacteria in yoghurt.
Details were presented at a meeting of the International Association for Dental Research. A total of 24 volunteers who【C2】________in the study were given strict instructions on oral hygiene, diet and medication intake. They spent two weeks【C3】________ yoghurts and similar foods, like cheese. Researchers then【C4】________bacteria levels and odour-causing compounds, including hydrogen sulphide.
The volunteers then ate 90 grams of yoghurt a day for six weeks. At the end of the study, researchers took【C5】________ again. They found hydrogen sulphide levels decreased in 80% of participants.
Dr. Nigel Carter, chief executive of the British Dental Health Foundation, said: "The foundation has long been drawing people’s attention to sugar-free yoghurts as a【C6】________ snack, so it is pleasing to hear that it may have oral health benefits we were previously unaware of.
"Although this research is still in the early stages there is no doubt that sugar-free yoghurts【C7】________ a much healthier alternative to sweets and chocolate, and we would encourage snackers to incorporate them into their【C8】________."
However, Dr. Carter stressed that the best way to beat bad breath was by adopting a good oral health routine. This【C9】________ brushing twice-a-day with fluoride (氯化物) toothpaste, cutting down on the frequency of sugary snacks and drinks and visiting a dentist【C10】________. [br] 【C4】

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答案 J

解析空格应填入动词作句子谓语。空格后的宾语为levels，且该段最后一句表明“研究发现80％受试者口腔内的硫化氢含量降低了”，根据逻辑，只有先测量才能得出数据，所以此空填入词库中的measured“测量”符合上下文语境。

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