有一首歌谣这样唱道:“蛐蛐叫喊夜声长,茄子下来菊花黄;没到八月过中秋,小鬼便抢占沈阳.”它反映的重大历史事件是( )
A:九一八事变
B:华北事变
C:卢沟桥事变
D:百团大战
—Whose book is this? There is no name on it. —Let me see. Oh, it's . I lost it a few days ago.
下图反映了我国古代不同封建王朝官员上朝的礼仪,实际上代表了君臣关系的变化。其反映 的实质问题是( )