按照( )，可将电信系统分为通信系统和通信网。
A．业务 B．系统特点C．系统局制 D．系统构成
参考答案：D
统筹安排工作进程的协调方法称作（）
A.会议协调
B.计划协调
C.中介协调
D.强制协调
A (71) is a data type whose major attributes are determined by the rules governing the insertion and deletion of its elements. The only element that can be deleted or removed is the one that was inserted most (72) . Such a structure is said to have a last-in/first-out (LIFO) behavior, or protocol.
A．quickly
B．recentness
C．recently
D．fast
