下载APP
【单选题】
部分患者在初戴义齿时，常出现恶心，甚至呕吐的原因是( )
A.
上颌义齿后缘伸展过长或义齿基托后缘与口腔黏膜不密合
B.
后部牙弓狭窄，舌活动受限，舌背与腭面之间形成很小的空气排溢道
C.
后牙缺失时间过久，两颊部向内凹陷
D.
舌体变大或咬舌现象
E.
上下颌牙齿接触面积小
举报
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Losing Weight Girls as young as 10 years old are dieting and in danger of developing unhealthy attitudes to weight, body image and food, a group of Toronto researchers reported Tuesday. Their study of...
A.
had unhealthy attitudes to weight.
B.
were overweight.
C.
were on a diet.
D.
had healthy weights.