问题
名词解释
上颌的横合曲线
答案
参考答案：
连接两侧上颌磨牙颊舌尖所构成的凸向下的曲线称为上颌的横合曲线。
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上颌的横合曲线
参考答案：
连接两侧上颌磨牙颊舌尖所构成的凸向下的曲线称为上颌的横合曲线。
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| My father 1 a good friend in the factory (工厂). He is sixty. He is an old man. All of the children like him. We call 2 Uncle Sam. He 3 from England. He 4 in Sichuan. He can't 5 Chinese. We teach (教) him Chinese 6 he 7 us English. He 8 work 9 Sunday. He 10 making things. And he likes watching TV with his children at night. | ||||
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