签了offer能reject吗？

我下周面G家的（本人不是大牛），但G家是我的梦想。我现在请求A家给我延长时间，如果不行的话。我可以签了以后反悔吗？有什么不良印象？求大神们给我建议。

这个是一个HR发给我用来延长ddl的方式 0 - 0 你可以借鉴一下。总之能延长就不要损人品...

In case you need some tips, I would recommend reiterating why you're interested in their company. Emphasize this is a big decision, so you want to be thoughtful and make sure you have all of the info you need. It's important to be honest, so let them know that you are still in process with other companies and you want to decide once you have completed all interviews and your due diligence. I would also explain that you want to finish the process with all other companies the same way that you would have done with the company you currently have an offer from.