题目内容
(请给出正确答案)
[单选题]
The standard protocol used for sending Internet e-mail is called _____. It works in conjunction with POP servers.
A.SMTP
B.WWW
C.TCP
D.UDP
查看答案
如果结果不匹配,请 联系老师 获取答案
A.SMTP
B.WWW
C.TCP
D.UDP
Freight consolidation is not a standard service.( )
Up went the price and _______.
|