A.http://learn.bit.edu.cn
B.http://www.learn.bit.edu.cn
C.http://learn.bit.edu
D.http://www.bitsd
E.com
A.http://www,microsofi,com/index.html
B.http:\\www.microsoft.com/index.html
C.http://www.microsoft.com\index.html
D.http//www,microsofi.com/index.html
A.HTTP/WAP事物状态<400
B.HTTP/WAP事物状态=400
C.HTTP/WAP事物状态>400
D.HTTP/WAP事物状态<200