一患者戴用全口义齿一周,主诉咀嚼费力,粘膜压痛,面部酸胀。最可能的原因是
A.戴用时间短,不适应
B.咬合不平衡
C.缓冲区未缓冲
D.垂直距离过高
E.基托不密合
参考答案:D
We all admired her ______ the way she saved the children from the fire.
A.to
B.for
C.in
D.at
在标准贯入试验中,若以标准贯入器作为一种取土器,则其面积比等于下列()数值。()
A.177.8%
B.146.9%
C.112.3%
D.45.7%