翼片适宜于()
A.观察多发性早期邻面龋
B.观察咬合创伤的程度
C.观察牙周间隙的大小
D.观察窝沟部深龋是否达到髓腔
E.以上皆适宜
参考答案:E
说明音响调音中安全用电基本措施。
This problem should be discussed first, for it takes ______ over all the other issues.
A. precedence B. prosperity C. presumption D. probability