A:(0,2)
B:0,2
C:{0,1,2}
D:{0,2}
—How was your day off during the Qingming Festival?
—Pretty good! We ____ (visit) Xu Xiaoxuan's former home.
Is that a cherry? Yes, it is. No, it isn't.
北宋沈括在《梦溪笔谈》中写道:“若止印二三张,未为简易;若印数十百千本,则极为神速。”这主要得益于( )
看到一篇文章被感动的热泪盈眶,下列与之相同的反射是( )