已知M、N是线段AB的垂直平分线上任意两点,则∠MAN和∠MBN之间关系是____.
中国古代有一部文学作品集,下图是其作品来源地域示意图。下列诗句出自这一作品集的是( )
He isn't such a man ______ he used to be.
—Yes. I ___________there a few months ago.