A:镜中看花
B:海市蜃楼
C:坐井观天
D:黑板反光
Paul is much taller than any other boy in his class. So Paul is _______ boy in his class.
“重新疆者,所以保蒙古,所以保卫京师。”这段材料表达的主要思想是( )
读我国四大地理分区及景观图E和F,回答问题: