题目内容

赵州桥建于隋朝,由著名工匠李春建造。

A. 对
B. 错

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火药是由硫磺、硝石、炭混合而成。

A. 对
B. 错

最早出现的指南工具叫司南,在春秋时已经普遍使用

A. 对
B. 错

赵州桥是世界上保存最好的巨大木桥,被誉为“华北四宝”之一。

A. 对
B. 错

Which one of the following sentences is CORRECT?

A. She stayed home until 5 p.m.
B. I will wait here until you will return.
C. Shanghai did not begin to develop into an industrial center until after the First Opium War.
D. I ran north until the crossroads.

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