第2题: [单项选择]全口义齿对无牙颌的覆盖区骨组织上覆盖着高角化复层鳞状上皮,其下附着有致密的黏膜下层组织的区域是 A. 主承托区 B. 副承托区 C. 边缘封闭区 D. 平衡区 E. 缓冲区 参考答案:A 答案解析:主承托区包括上下颌牙槽嵴顶的区域,此区的骨组织上被覆盖着高度角化的复层鳞状上皮,其下有致密的黏膜下层所附着,此区能承担咀嚼压力,抵抗义齿基托的碰撞而不致造成组织的创伤。
第37题: [单项选择]A. She doesn’t know where the man wants to go. B. She doesn’t know how to get to the library. C. She can give the man directions. D. She wants to find out where Olympic Street is. 参考答案:C 答案解析:[解析] M: Excuse me, can you tell me how to get to the library W: Well, do you know where O