______是北京现存最大的古钟，明成祖朱棣迁都北京后铸造，时为迁都三大工程(______、______、______)之一。P91
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中关村是北京开展______旅游和______的重要地区。P52
首都博物馆展陈由______、______和______三大部分组成。P85
Questions 22～25 are based on the following monologue. Why do people like to wear T-shirts so much today
A. T-shirts are suitable for home wear.
B. T-shirts are smart and comfortable.
C. T-shirts go well with trousers.
D. T-shirts feel soft and wash well.
长城饭店建筑呈“______”字形，中心塔楼______层，周围分三翼，为______层，晶莹光亮，犹如水晶宫一般，有“______”之称。P107
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