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Among them, who also delivers speech in Pittsburgh?（查阅课外资料）

A. Konrad N.Hilton
B. John Davison Rockefeller
C. Emerson
D. Abraham Lincoln

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Directions: There are two or three meanings for each semi-technical term underlined in th following sentences. Choose the correct one according to the context.1. Researchers can combine them easily and inexpensively, into thin films that have a highly crystalline structure similar to that achieved in silicon wafers after costly, high-temperature processing.

A. thin coating or covering
B. roll or sheet of thin flexible material for use in photographs

六朝时期代表陶瓷器型为？

A. 鸡头壶
B. 梅瓶
C. 玉壶春
D. 斗笠碗

最早出现的植物纹饰？

A. 忍冬
B. 莲花
C. 卷草
D. 饕餮

画像砖和画像石为？

A. 一种建筑构件
B. 用来建造墓室和祠堂
C. 建造普通人住的房屋
D. 建造皇室宫殿