—Is _____________ a photo of your parents?
—No, _____________.
浊液区别于其他分散系最本质的特征是( )
抗日战争中,国民党军队抗战以来取得的最大胜利是( )
- Could you tell me _______?
- My cousin. He works as a policeman in the police station.
如图,在矩形纸片ABCD中,已知AB=1,BC= 3 ,点E在边CD上移动,连接AE,将多边形ABCE沿直线AE翻折,得到多边形AB′C′E,点B、C的对应点分别为点B′、C′.