主要用于制作蜡基托,蜡堤,及人工牙蜡型的蜡是()
A.嵌体蜡
B.铸道蜡
C.基托蜡
D.粘蜡
E.印模蜡
参考答案:C
解析:
基托蜡主要用于制作蜡基托,蜡堤,及人工牙蜡型。
________, you will get used to the life here and have your understanding of life. [ ]
A. As time going by
B. With time passing out
C. As time goes by
D. With time goes by
在模拟通信系统中,传输带宽属于通信系统性能指标中的()。
A.可靠性
B.有效性
C.适应性
D.标准性