United States citizens are now enjoying better dental health, as shown by the de

游客2023-12-26 16

问题 United States citizens are now enjoying better dental health, as shown by the declining ______of tooth decay.

选项 A、accidents
B、incidence
C、prominence
D、consequence

答案 B

解析本题考查名词语义搭配。本题后半句意为“如龋齿的______下降所示”，通过逻辑分析可知所缺名词应为“发生率”，而四个选项中只有incidence符合题意。其余三项accidents(事故，意外事件)，prominence(突出，显著)，consequence(结果；重要性；推论)皆不符合题意。

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