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【简答题】
What happened to hutong in most of Old Beijing at the turn of the century? (Para. 9) During the 1990s and early 2000s, as the Wangs hawked cigarettes in Ju’er Hutong, developers sold most of old Beijing. Few sections of the city were protected. Whenever a hutong was doomed, its buildings were marked with a huge painted character surrounded by a circle: 拆 “pull down, dismantle.”
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【单选题】Women developed a sense of space out of the need（ ）.
A.
to go fishing
B.
Togo hunting
C.
to learn well-used paths
D.
to go swimming
【单选题】Women developed a sense of space out of the need（ ）
A.
to go fishing
B.
to go hunting
C.
to learn well-used paths
D.
to go swimming
【多选题】列关于计算机网络开放系统互连参考模型OSI 描述正确的是( )。
A.
数据发送时,从第七层传到第一层,接收数据则相反。
B.
上三层总称应用层,用来控制软件方面
C.
下四层总称数据流层,用来管理硬件。
D.
除了物理层之外其他层都是用软件实现的。
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