No formal answer is expected. Rather, it is a device used by the speaker to assert or deny something.
It's a rhetorical question.
所有跟帖:
• All advice would be greatly appreciated! -zsazsazsu- ♀ (0 bytes) () 10/21/2010 postreply 08:12:36
• 老屋這論文體讀著叫人很high, -吃糖?- ♂ (82 bytes) () 10/21/2010 postreply 09:59:29