A：first; first
B：first; last
C：last; first
D：last; last
朱熹提出“存天理，灭人欲”。认为人欲是一切罪恶的根源，其实质是
_______ you have visited the Great Wall, you can’t imagine how great it is.
生男还是生女主要取决于母亲，与父亲无关。
