系统间通讯常用的报文格式有()?
A、xml报文
B、分隔符报文
C、ISO8583报文
D、定长报文
参考答案:A, B, C, D
什么是跳汰频率?什么是跳汰振幅?
is very clear to everyone that he's round and tall like a tree.
A.This
B.What
C.That
D.It