题型:选择题 When I called at his home the other day, I found him sitting on an armchair,_____ in his hands.A.his head buryB.burying his headC.his head buryingD.his head to be buried 查看答案
题型:单项选择题 男,无牙颌患者。全口义齿戴用一周。主诉黏膜压痛且位置不确定,咀嚼时义齿易脱位。检查发现,面部形态自然,义齿固位良好,基托边缘伸展适度,但咬合时下颌义齿轻度移位。其原因是A.初戴不适应B.基托变形C.基托翘动D.咬合干扰E.垂直距离过高 查看答案