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下列不具有抗龋作用的矿物质或元素是()
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下列不具有抗龋作用的矿物质或元素是()
A、氟
B、磷酸盐
C、铜
D、镁
时间:2021-09-02 13:19
关键词:
联大
开封大学
口腔医学
口腔内科学
答案解析
D
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