异步传辅ATM技术是一种【 】和复用技术。
参考答案:分组交换
解析:异步传输ATM技术是一种分组交换和复用技术。
It is widely accepted that parents should raise their children more by _____ than by anything else. [ ]
A. example
B. nature
C. contrast
D. force
计算循环冷却水中的浓缩倍率,一般以水中的()来计算。
A.氯离子;
B.碱度;
C.硬度;
D.溶解固形物。