确定图2-6所示系统的固有频率。圆盘质量为m。
参考答案:
The ____ grandfather is teaching his ____ granddaughter to write.[ ]
A. loving; loving
B. lovely; lovely
C. loving; lovely
D. lovely; loving
病史采集是通过什么来了解患者的主诉、系统病史以及口腔专科病史等情况
A.临床检查
B.临床问诊
C.特殊检查
D.临床回顾
E.患者主诉