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龋病（dental caries）
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更多 “龋病（dental caries）” 相关考题
考题
The sound of "th" in "thin" is__________.
A.voiceless, dental, and fricative
B.voiced, dental, and fricative
C.voiceless, dental, and affricative
D.voiced, dental, and affricative
考题
龋病（dental caries，tooth decay）是牙在以细菌为主的多种因素影响下发生慢性进行性破坏的疾病。我国发病率大约在（）之间A、30%-55%B、35%-60%C、40%-65%D、45%-70%
考题
单选题A study by a group of dentists has concluded that regular use of a certain brand of mouthwash is as effective as flossing in preventing gum disease. The mouthwash company has released a television ad suggesting that people who do not like flossing can now rely solely on mouthwash and brushing to maintain good dental health. A leading manufacturer of dental floss brought a lawsuit against the mouthwash company demanding that the advertisement be discontinued on the grounds that it is misleading. Which of the following, if true, provides the strongest support for the dental floss company’s claim that the advertisement is misleading?A
The dental floss manufacturer is concerned that it will lose market share in the dental health market because the advertisement encourages people to switch from dental floss to mouthwash.B
The dental floss company claims in its own advertisements that brushing and flossing after every meal is the most effective way to maintain good dental health.C
Although mouthwash is an effective deterrent to gum disease, it is less effective than dental floss at removing plaque and preventing cavities between teeth.D
Per usage, mouthwash is three times more expensive than dental floss, if the recommended amounts of both products are used.E
The dentists who conducted the study on the effectiveness of mouthwash in preventing gum disease obtained their funding for the study from a company that manufactures mouthwash.
考题
单选题龋病（dental caries，tooth decay）是牙在以细菌为主的多种因素影响下发生慢性进行性破坏的疾病。我国发病率大约在（）之间A
30%-55%B
35%-60%C
40%-65%D
45%-70%
考题
单选题The sound ofchin teacheris_________.A
voiceless, post-alveolar, and affricativeB
voiceless, dental, and fricativeC
voiced, dental, and fricativeD
voiced, post-alveolar, and plosive
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