【单选题】【消耗次数:1】
Paper_______by Chinese for thousands of years now.
has made
has been made
was made
参考答案:
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②  3个月
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②  不能妨碍咀嚼、发音等口腔功能
③  便于清洁
④  可以移动牙齿
⑤  容易调整
【单选题】 正畸治疗后保持的原因为()
①  肌动力平衡的最终改建尚未完成
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①  肌动力平衡未建立
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【单选题】 下列不属于自然保持范畴的是()
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②  侧向功能偏斜:破除不良习惯,训练鼻呼吸,磨除乳尖牙干扰,扩大牙弓
③  下颌侧向错位及TMJ紊乱:乳牙列就需矫治,螺旋扩弓器,四眼扩弓簧,功能矫治器
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⑤  单侧下颌生长不调:功能性原因,尽早治疗,可使用复位性合垫遗传性原因,不做处理
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【单选题】 下列不属于阻碍牙槽颌面和谐发育的因素的是()
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②  口呼吸
③  姿势
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【单选题】 关于解除锁结的说法,不正确的是()
①  旋转磨牙,扩大上牙弓,重塑上颌,引导下颌
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④  消除功能基质缺陷
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