“人生代代无穷已，江月年年只相似”，二句出自于（）
A.杜甫《月夜》
B.张若虚《春江花月夜》
C.李白《关山月》
D.张九龄《望月怀远》
参考答案：B
The high-speed data services for the interconnection of computer networks are usually referred to as ______ connections．
A．LANs
B．MANs
C．WANs
D．ATM
阴虚证
