— We often use QQ to chat with friends on the Internet.
— Really? Will you please show me it?
A:how to use
B:what to use
C:what do I use
①新航路的开辟
②黑奴贸易
③《法典》的颁布
④南北战争中黑人奴隶制的废除
巴以矛盾导致中东地区长期动荡,引起国际社会广泛关注。当前在联合国框架下解决巴以矛盾的基本原则是( )