A:照相机
B:凸面镜
C:平面镜
D:幻灯机
“哀民生之多艰”、“风声鹤唳,草木皆兵”、“怒发冲冠”、“漫卷诗书喜欲狂”所表现的情绪顺次是( )
明朝北京的紫禁城是指( )
Carol doesn't know what she should take for her trip. (改为同义句)
Carol doesn't know____ ____ ____for her trip.
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