Look! He's Danny. He is the narrator.
设集合M=-1,0,1,N=x|x2≤x,则M∩N= ( )
What do you think of those famous____(Canada) writers in history?
大力开发下列能源,其中不符合治理“雾霾”要求的是( )
关于我国的民族说法不正确的是( )