全口义齿鸦平面位置测定下列哪一项是错误的()。
A.与瞳孔连线平行
B.与鼻翼耳屏连线平行
C.与下颌二侧牙槽嵴平行
D.平分颌间距离
E.在上唇下缘以下2mm
参考答案:C
Studies show that students are more ______ to be addicted to playing computer games if they always
play them before computer screens every day. [ ]
A. possible
B. probable
C. likely
D. perhaps
中碳钢锻造之后,应进行();
A、炉冷;
B、空冷;
C、炕冷;