问题
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桩冠修复时理想的冠桩直径为根径的A.1/3B.1/2C.2/3D.1/4E.2/5
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补充继续损失,所选液体张力为()A.1/5~1/4张B.1/3~2/5张C.1/3~2/3张D.1/2~1/3张E.2/3~等张
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补充继续损失,所选液体张力为A.1/5~1/4张B.1/3~2/5张C.1/3~2/3张D.1/2~2/3张E.2/3~等张
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冠桩修复时 桩的直径应为A 根径的1/4 B 根径的1/3 C 根径的1/2 D 根径的2/3 E
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冠桩长度为根长的A 1/5 B 1/4 C 1/3 D 1/2 E 2/3
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冠桩直径为根径的( )A.1/5B.1/4C.1/3D.1/2E.2/3