种植钉支抗的直径一般是A.0.5~1mm B.1~1.5mm C.1~2mm D.2~2.5mm E.2~3mm

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问题 种植钉支抗的直径一般是

选项 A.0.5~1mm
B.1~1.5mm
C.1~2mm
D.2~2.5mm
E.2~3mm

答案C

解析
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