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【单选题】
以下哪种方法不用去除牙体组织,在牙齿的点隙裂沟涂布一层黏结性树脂,保护牙釉质不受侵蚀,预防龋病发生A.
预防性树脂充填
B.
非创伤性修复
C.
点隙裂沟封闭
D.
烤附冠修复
E.
嵌体预备
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【简答题】在 C 语言程序源代码中,数据变量定义使用下列 ___ 命令,可以定义赋整型数值类型数值的变量。
【简答题】In the fall of 1985, I was a bright-eyed girl heading off to Howard University, aiming at a legal career and dreaming of sitting on a Supreme Court bench somewhere. Twenty-one years later I am still a...
【简答题】In the fall of 1985. I was a bright-eyed girl heading off to Howard University, aiming at a legal career and dreaming of sitting on a Supreme Court bench somewhere. Twenty-one years later I am later I...
【简答题】In the fall of 1985. I was a bright-eyed girl heading off to Howard University, aiming at a legal career and dreaming of sitting on a Supreme Court bench somewhere. Twenty-one years later , I am still...
【单选题】一辆汽车的速度从10/kmh增加到20/kmh,动能的增量为 ;若速度从40/kmh增加到 50/kmh,动能的增量为 ,则
A.
=
B.
＞
C.
＜
D.
无法判断
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