會考CIT 05 年最受爭議一題

αlpha

A. http://64.233.187.99
B. http://hk.news.yahoo.com/
C. http://a-b-c.com
D. http://a_b_c.com

可唔可以解釋下點解你地覺得係B/C?
P.S.我無讀CIT,好奇問下

αlpha

但係我睇番呢個standand
http://www.w3.org/Addressing/rfc1738.txt

佢話Scheme names consist of a sequence of characters. The lower case
letters "a"--"z", digits, and the characters plus ("+"), period
("."), and hyphen ("-") are allowed.

但係無講"_"